#B4551F#B4551F

#B4551F is a mid, vivid orange. Relative luminance 0.163; OKLCH L 55.9% C 0.139 H 46.3°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#B4551F
RGB	rgb(180, 85, 31)
HSL	hsl(22, 71%, 41%)
HSV	hsv(22, 83%, 71%)
CMYK	cmyk(0%, 52.8%, 82.8%, 29.4%)
CIE-LAB	lab(47.37, 35.34, 47.11)
CIE-LCH	lch(47.37, 58.89, 53.12°)
OKLab	oklab(55.95% 0.0962 0.1007)
OKLCH	oklch(55.95% 0.139 46.3)
XYZ	xyz(22.3205, 16.3021, 3.2673)
Luminance	0.1630 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4551F #1F7EB4

analogous

#B41F34 #B4551F #B4A01F

triadic

#B4551F #1FB455 #551FB4

tetradic

#B4551F #34B41F #1F7EB4 #A01FB4

square

#B4551F #34B41F #1F7EB4 #A01FB4

split-complementary

#B4551F #1FB4A0 #1F34B4

monochromatic

#4C240D #803C16 #B4551F #DC7134 #E59668

Accessibility & contrast

On white

4.93

#B4551F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#B4551F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4551F

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4551F	#FFFFFF	#000000	##FFFFFF
##B4551F	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#706316

Deuteranopia (green-blind)

#87791C

Tritanopia (blue-blind)

#C6404A

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #b4551f;
/* rgb */ color: rgb(180, 85, 31);
/* oklch */ color: oklch(55.9% 0.139 46.3);

Tailwind

colors: {
  custom: {
    50: '#d2875f',
    500: '#b4551f',
    950: '#000000',
  },
}

SCSS

$custom: #b4551f;
$custom-light: #d2875f;
$custom-dark: #000000;

JSON

{
  "hex": "#b4551f",
  "rgb": {
    "r": 180,
    "g": 85,
    "b": 31
  },
  "hsl": {
    "h": 21.745,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55949,
    "c": 0.13925,
    "h": 46.3
  },
  "luminance": 0.16299
}

Semantic roles & 50–950 ramp

primary

#B4551F

secondary

#64A5CB

accent

#ADED3A

background

#FDF8F5

surface

#FBF0E9

border

#D4CBC5

text

#150B05

muted

#837C79

Preview Lab

Preview with #B4551F

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

Preview Lab → · Contrast checker → · Palette generator →