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#B4100A

#b4100a ≈ Rufous

  • red
  • Lightness: low
  • Saturation: strong
  • Warm
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#b4100a is a color from the red family, with low lightness and strong saturation. In the RGB model it is made of 70.59% red, 6.27% green and 3.92% blue; printed in CMYK it uses 0% cyan, 91.11% magenta, 94.44% yellow and 29.41% black. Its hue angle is 2.12°, with 89.47% saturation and 37.25% 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 6.96:1 (WCAG AA). The closest named color is Rufous (#a81c07), ΔE 2.45.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#cc0000
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.101

Complementary

  1. #b4100a
  2. #0aaeb4

Split complementary

  1. #b4100a
  2. #0ab465
  3. #0a59b4

Analogous

  1. #b40a59
  2. #b4100a
  3. #b4650a

Triadic

  1. #b4100a
  2. #0ab410
  3. #100ab4

Tetradic

  1. #b4100a
  2. #aeb40a
  3. #0aaeb4
  4. #100ab4

Square

  1. #b4100a
  2. #59b40a
  3. #0aaeb4
  4. #650ab4

Monochromatic

  1. #230302
  2. #6c0a06
  3. #b4100a
  4. #f22018
  5. #f66661

Shades

#b4100a mixed progressively with black.

  1. #b4100a
  2. #a20e09
  3. #900d08
  4. #7e0b07
  5. #6c0a06
  6. #5a0805
  7. #480604
  8. #360503
  9. #240302
  10. #120201
  11. #000000

Tints

#b4100a mixed progressively with white.

  1. #b4100a
  2. #bc2823
  3. #c3403b
  4. #cb5854
  5. #d2706c
  6. #da8885
  7. #e19f9d
  8. #e9b7b6
  9. #f0cfce
  10. #f8e7e7
  11. #ffffff

Tones

#b4100a mixed progressively with gray.

  1. #b4100a
  2. #af1b16
  3. #aa2622
  4. #a4322d
  5. #9f3d39
  6. #9a4845
  7. #955351
  8. #905e5d
  9. #8a6a68
  10. #857574
  11. #808080

Readable text 6.96:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 3.02:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #595959 ≈ 0.003% of males
Achromatomaly #874746 ≈ 0.001% of males
Protanopia #4d4304 ≈ 1.01% of males
Deuteranopia #736500 ≈ 1.27% of males
Tritanopia #c70013 ≈ 0.0001% of males
Protanomaly #833506 ≈ 1.08% of males
Deuteranomaly #925000 ≈ 4.63% of males
Tritanomaly #c00010 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-b4100a {
  color: #b4100a;
}
Background
.bg-b4100a {
  background-color: #b4100a;
  color: #ffffff;
}
Border
.border-b4100a {
  border: 2px solid #b4100a;
}
CSS variables
:root {
  --color-primary: #b4100a;
  --color-primary-rgb: 180 16 10;
  --color-primary-hsl: 2 89% 37%;
}
Gradient
.gradient-b4100a {
  background: linear-gradient(135deg, #b4100a, #b4650a);
}
Colored shadow
.shadow-b4100a {
  box-shadow: 0 8px 24px rgb(180 16 10 / 0.35);
}

#a81c07 Rufous ΔE 2.45 #b31b1b Cornell Red ΔE 2.88 #c80815 Venetian Red ΔE 4.17 #b22222 Firebrick ΔE 4.19 #d40000 Rosso Corsa ΔE 6.35 #cf1020 Lava ΔE 6.40 #a52a2a Brown ΔE 6.67 #4beff5 Inverted #595959 Grayscale 

Rufous
#b4100a  rgb(180, 16, 10)  hsl(2, 89%, 37%)  Rufous
#0aaeb4  rgb(10, 174, 180)  hsl(182, 89%, 37%)  Verdigris
#0ab410  rgb(10, 180, 16)  hsl(122, 89%, 37%)  Kelly Green
#100ab4  rgb(16, 10, 180)  hsl(242, 89%, 37%)  Zaffre