#B4451F#B4451F

#B4451F is a mid, vivid orange. Relative luminance 0.141; OKLCH L 53.6% C 0.153 H 38.2°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#B4451F
RGB	rgb(180, 69, 31)
HSL	hsl(15, 71%, 41%)
HSV	hsv(15, 83%, 71%)
CMYK	cmyk(0%, 61.7%, 82.8%, 29.4%)
CIE-LAB	lab(44.32, 43.22, 44.32)
CIE-LCH	lch(44.32, 61.91, 45.71°)
OKLab	oklab(53.64% 0.1202 0.0945)
OKLCH	oklch(53.64% 0.153 38.2)
XYZ	xyz(21.2002, 14.0615, 2.8939)
Luminance	0.1406 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4451F #1F8EB4

analogous

#B41F44 #B4451F #B4901F

triadic

#B4451F #1FB445 #451FB4

tetradic

#B4451F #44B41F #1F8EB4 #901FB4

square

#B4451F #44B41F #1F8EB4 #901FB4

split-complementary

#B4451F #1FB490 #1F44B4

monochromatic

#4C1D0D #803116 #B4451F #DC5F34 #E58868

Accessibility & contrast

On white

5.51

#B4451F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#B4451F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4451F

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4451F	#FFFFFF	#000000	##FFFFFF
##B4451F	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)

#655919

Deuteranopia (green-blind)

#80721A

Tritanopia (blue-blind)

#C6283E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #b4451f;
/* rgb */ color: rgb(180, 69, 31);
/* oklch */ color: oklch(53.6% 0.153 38.2);

Tailwind

colors: {
  custom: {
    50: '#d37d5e',
    500: '#b4451f',
    950: '#000000',
  },
}

SCSS

$custom: #b4451f;
$custom-light: #d37d5e;
$custom-dark: #000000;

JSON

{
  "hex": "#b4451f",
  "rgb": {
    "r": 180,
    "g": 69,
    "b": 31
  },
  "hsl": {
    "h": 15.302,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.53635,
    "c": 0.15289,
    "h": 38.2
  },
  "luminance": 0.14058
}

Semantic roles & 50–950 ramp

primary

#B4451F

secondary

#64B0CB

accent

#C0ED3A

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160A04

muted

#847C79

Preview Lab

Preview with #B4451F

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

Preview Lab → · Contrast checker → · Palette generator →