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#B00A21

#b00a21 ≈ Firebrick

  • red
  • Lightness: low
  • Saturation: strong
  • Warm
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#b00a21 is a color from the red family, with low lightness and strong saturation. In the RGB model it is made of 69.02% red, 3.92% green and 12.94% blue; printed in CMYK it uses 0% cyan, 94.32% magenta, 81.25% yellow and 30.98% black. Its hue angle is 351.69°, with 89.25% saturation and 36.47% lightness in HSL. It is a warm color, often associated with energy, passion and urgency. Designers typically use it for food and restaurant brands, sales and promotions and call-to-action buttons. White text on this color reaches a contrast ratio of 7.21:1 (WCAG AAA). The closest named color is Firebrick (#b22222), ΔE 2.75.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#990033
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0956

Complementary

  1. #b00a21
  2. #0ab099

Split complementary

  1. #b00a21
  2. #0ab046
  3. #0a74b0

Analogous

  1. #b00a74
  2. #b00a21
  3. #b0460a

Triadic

  1. #b00a21
  2. #21b00a
  3. #0a21b0

Tetradic

  1. #b00a21
  2. #b0990a
  3. #0ab099
  4. #0a21b0

Square

  1. #b00a21
  2. #74b00a
  3. #0ab099
  4. #460ab0

Monochromatic

  1. #1f0206
  2. #680613
  3. #b00a21
  4. #f21533
  5. #f65d72

Shades

#b00a21 mixed progressively with black.

  1. #b00a21
  2. #9e091e
  3. #8d081a
  4. #7b0717
  5. #6a0614
  6. #580511
  7. #46040d
  8. #35030a
  9. #230207
  10. #120103
  11. #000000

Tints

#b00a21 mixed progressively with white.

  1. #b00a21
  2. #b82337
  3. #c03b4d
  4. #c85464
  5. #d06c7a
  6. #d88590
  7. #df9da6
  8. #e7b6bc
  9. #efced3
  10. #f7e7e9
  11. #ffffff

Tones

#b00a21 mixed progressively with gray.

  1. #b00a21
  2. #ab162b
  3. #a62234
  4. #a22d3e
  5. #9d3947
  6. #984551
  7. #93515a
  8. #8e5d64
  9. #8a686d
  10. #857477
  11. #808080

Readable text 7.21:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.91:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #575757 ≈ 0.003% of males
Achromatomaly #844447 ≈ 0.001% of males
Protanopia #494120 ≈ 1.01% of males
Deuteranopia #6f6319 ≈ 1.27% of males
Tritanopia #c20017 ≈ 0.0001% of males
Protanomaly #7f3320 ≈ 1.08% of males
Deuteranomaly #8e4e1c ≈ 4.63% of males
Tritanomaly #bb001c ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-b00a21 {
  color: #b00a21;
}
Background
.bg-b00a21 {
  background-color: #b00a21;
  color: #ffffff;
}
Border
.border-b00a21 {
  border: 2px solid #b00a21;
}
CSS variables
:root {
  --color-primary: #b00a21;
  --color-primary-rgb: 176 10 33;
  --color-primary-hsl: 352 89% 36%;
}
Gradient
.gradient-b00a21 {
  background: linear-gradient(135deg, #b00a21, #b0460a);
}
Colored shadow
.shadow-b00a21 {
  box-shadow: 0 8px 24px rgb(176 10 33 / 0.35);
}

#b22222 Firebrick ΔE 2.75 #a52a2a Brown ΔE 3.06 #a52a2a Auburn ΔE 3.06 #b31b1b Cornell Red ΔE 3.31 #960018 Carmine ΔE 5.34 #c80815 Venetian Red ΔE 6.36 #c41e3a Cardinal ΔE 6.56 #4ff5de Inverted #575757 Grayscale 

Firebrick
#b00a21  rgb(176, 10, 33)  hsl(352, 89%, 36%)  Firebrick
#0ab099  rgb(10, 176, 153)  hsl(172, 89%, 36%)  Persian Green
#21b00a  rgb(33, 176, 10)  hsl(112, 89%, 36%)  Kelly Green
#0a21b0  rgb(10, 33, 176)  hsl(232, 89%, 36%)  Zaffre