ColorTool
Log in
#B4400A

#b4400a ≈ Rust

  • brown
  • Lightness: low
  • Saturation: strong
  • Warm
Check contrast Explore in graph Random color

#b4400a is a color from the brown family, with low lightness and strong saturation. In the RGB model it is made of 70.59% red, 25.1% green and 3.92% blue; printed in CMYK it uses 0% cyan, 64.44% magenta, 94.44% yellow and 29.41% black. Its hue angle is 19.06°, with 89.47% saturation and 37.25% lightness in HSL. It is a warm color, often associated with reliability, warmth and earthiness. Designers typically use it for cafés and coffee brands, rustic and natural styles and call-to-action buttons. White text on this color reaches a contrast ratio of 5.71:1 (WCAG AA). The closest named color is Rust (#b7410e), ΔE 0.82.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#cc3300
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1339

Complementary

  1. #b4400a
  2. #0a7eb4

Split complementary

  1. #b4400a
  2. #0ab495
  3. #0a29b4

Analogous

  1. #b40a29
  2. #b4400a
  3. #b4950a

Triadic

  1. #b4400a
  2. #0ab440
  3. #400ab4

Tetradic

  1. #b4400a
  2. #7eb40a
  3. #0a7eb4
  4. #400ab4

Square

  1. #b4400a
  2. #29b40a
  3. #0a7eb4
  4. #950ab4

Monochromatic

  1. #230c02
  2. #6c2606
  3. #b4400a
  4. #f25e18
  5. #f69061

Shades

#b4400a mixed progressively with black.

  1. #b4400a
  2. #a23a09
  3. #903308
  4. #7e2d07
  5. #6c2606
  6. #5a2005
  7. #481a04
  8. #361303
  9. #240d02
  10. #120601
  11. #000000

Tints

#b4400a mixed progressively with white.

  1. #b4400a
  2. #bc5323
  3. #c3663b
  4. #cb7954
  5. #d28c6c
  6. #daa085
  7. #e1b39d
  8. #e9c6b6
  9. #f0d9ce
  10. #f8ece7
  11. #ffffff

Tones

#b4400a mixed progressively with gray.

  1. #b4400a
  2. #af4616
  3. #aa4d22
  4. #a4532d
  5. #9f5a39
  6. #9a6045
  7. #956651
  8. #906d5d
  9. #8a7368
  10. #857a74
  11. #808080

Readable text 5.71:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 3.68:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #666666 ≈ 0.003% of males
Achromatomaly #8c5951 ≈ 0.001% of males
Protanopia #625600 ≈ 1.01% of males
Deuteranopia #7f7000 ≈ 1.27% of males
Tritanopia #c71d37 ≈ 0.0001% of males
Protanomaly #8b4e02 ≈ 1.08% of males
Deuteranomaly #976004 ≈ 4.63% of males
Tritanomaly #bf2f2b ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-b4400a {
  color: #b4400a;
}
Background
.bg-b4400a {
  background-color: #b4400a;
  color: #ffffff;
}
Border
.border-b4400a {
  border: 2px solid #b4400a;
}
CSS variables
:root {
  --color-primary: #b4400a;
  --color-primary-rgb: 180 64 10;
  --color-primary-hsl: 19 89% 37%;
}
Gradient
.gradient-b4400a {
  background: linear-gradient(135deg, #b4400a, #b4950a);
}
Colored shadow
.shadow-b4400a {
  box-shadow: 0 8px 24px rgb(180 64 10 / 0.35);
}

#b7410e Rust ΔE 0.82 #c04000 Mahogany ΔE 2.53 #cb410b Sinopia ΔE 4.79 #a0522d Sienna ΔE 6.34 #d40000 Rosso Corsa ΔE 8.35 #a81c07 Rufous ΔE 8.35 #cc5500 Burnt Orange ΔE 8.61 #4bbff5 Inverted #666666 Grayscale 

Rust
#b4400a  rgb(180, 64, 10)  hsl(19, 89%, 37%)  Rust
#0a7eb4  rgb(10, 126, 180)  hsl(199, 89%, 37%)  Cerulean
#0ab440  rgb(10, 180, 64)  hsl(139, 89%, 37%)  Kelly Green
#400ab4  rgb(64, 10, 180)  hsl(259, 89%, 37%)  Medium Blue