#B4451B#B4451B

#B4451B is a mid, vivid orange. Relative luminance 0.140; OKLCH L 53.6% C 0.154 H 39.2°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#B4451B
RGB	rgb(180, 69, 27)
HSL	hsl(16, 74%, 41%)
HSV	hsv(16, 85%, 71%)
CMYK	cmyk(0%, 61.7%, 85%, 29.4%)
CIE-LAB	lab(44.29, 43.11, 46.12)
CIE-LCH	lch(44.29, 63.13, 46.93°)
OKLab	oklab(53.61% 0.1192 0.0971)
OKLCH	oklch(53.61% 0.154 39.2)
XYZ	xyz(21.1507, 14.0417, 2.6333)
Luminance	0.1404 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4451B #1B8AB4

analogous

#B41B3D #B4451B #B4921B

triadic

#B4451B #1BB445 #451BB4

tetradic

#B4451B #3DB41B #1B8AB4 #921BB4

square

#B4451B #3DB41B #1B8AB4 #921BB4

split-complementary

#B4451B #1BB492 #1B3DB4

monochromatic

#4A1C0B #7F3113 #B4451B #DF5E2D #E78762

Accessibility & contrast

On white

5.51

#B4451B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#B4451B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4451B

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4451B	#FFFFFF	#000000	##FFFFFF
##B4451B	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655914

Deuteranopia (green-blind)

#807216

Tritanopia (blue-blind)

#C6283D

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #b4451b;
/* rgb */ color: rgb(180, 69, 27);
/* oklch */ color: oklch(53.6% 0.154 39.2);

Tailwind

colors: {
  custom: {
    50: '#d37d5c',
    500: '#b4451b',
    950: '#000000',
  },
}

SCSS

$custom: #b4451b;
$custom-light: #d37d5c;
$custom-dark: #000000;

JSON

{
  "hex": "#b4451b",
  "rgb": {
    "r": 180,
    "g": 69,
    "b": 27
  },
  "hsl": {
    "h": 16.471,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.53605,
    "c": 0.15375,
    "h": 39.2
  },
  "luminance": 0.14039
}

Semantic roles & 50–950 ramp

primary

#B4451B

secondary

#5FAECC

accent

#BEF137

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160A04

muted

#847C79

Preview Lab

Preview with #B4451B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →