#B4571F#B4571F

#B4571F is a mid, vivid orange. Relative luminance 0.166; OKLCH L 56.3% C 0.138 H 47.5°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#B4571F
RGB	rgb(180, 87, 31)
HSL	hsl(23, 71%, 41%)
HSV	hsv(23, 83%, 71%)
CMYK	cmyk(0%, 51.7%, 82.8%, 29.4%)
CIE-LAB	lab(47.78, 34.30, 47.48)
CIE-LCH	lch(47.78, 58.57, 54.15°)
OKLab	oklab(56.26% 0.093 0.1015)
OKLCH	oklch(56.26% 0.138 47.5)
XYZ	xyz(22.4802, 16.6215, 3.3205)
Luminance	0.1662 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4571F #1F7CB4

analogous

#B41F32 #B4571F #B4A21F

triadic

#B4571F #1FB457 #571FB4

tetradic

#B4571F #32B41F #1F7CB4 #A21FB4

square

#B4571F #32B41F #1F7CB4 #A21FB4

split-complementary

#B4571F #1FB4A2 #1F32B4

monochromatic

#4C250D #803E16 #B4571F #DC7334 #E59768

Accessibility & contrast

On white

4.86

#B4571F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#B4571F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4571F

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4571F	#FFFFFF	#000000	##FFFFFF
##B4571F	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#726416

Deuteranopia (green-blind)

#88791D

Tritanopia (blue-blind)

#C6424C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #b4571f;
/* rgb */ color: rgb(180, 87, 31);
/* oklch */ color: oklch(56.3% 0.138 47.5);

Tailwind

colors: {
  custom: {
    50: '#d28860',
    500: '#b4571f',
    950: '#000000',
  },
}

SCSS

$custom: #b4571f;
$custom-light: #d28860;
$custom-dark: #000000;

JSON

{
  "hex": "#b4571f",
  "rgb": {
    "r": 180,
    "g": 87,
    "b": 31
  },
  "hsl": {
    "h": 22.55,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.56263,
    "c": 0.13771,
    "h": 47.5
  },
  "luminance": 0.16619
}

Semantic roles & 50–950 ramp

primary

#B4571F

secondary

#64A4CB

accent

#AAED3A

background

#FDF8F5

surface

#FBF0EA

border

#D4CBC6

text

#150B05

muted

#837C79

Preview Lab

Preview with #B4571F

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

Preview Lab → · Contrast checker → · Palette generator →