#B45731#B45731

#B45731 is a mid, vivid orange. Relative luminance 0.167; OKLCH L 56.4% C 0.132 H 41.8°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#B45731
RGB	rgb(180, 87, 49)
HSL	hsl(17, 57%, 45%)
HSV	hsv(17, 73%, 71%)
CMYK	cmyk(0%, 51.7%, 72.8%, 29.4%)
CIE-LAB	lab(47.94, 35.03, 38.92)
CIE-LCH	lch(47.94, 52.36, 48.01°)
OKLab	oklab(56.43% 0.0982 0.0877)
OKLCH	oklch(56.43% 0.132 41.8)
XYZ	xyz(22.7871, 16.7442, 4.9371)
Luminance	0.1674 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B45731 #318EB4

analogous

#B4314C #B45731 #B49931

triadic

#B45731 #31B457 #5731B4

tetradic

#B45731 #4CB431 #318EB4 #9931B4

square

#B45731 #4CB431 #318EB4 #9931B4

split-complementary

#B45731 #31B499 #314CB4

monochromatic

#542817 #844024 #B45731 #D07752 #DD9D82

Accessibility & contrast

On white

4.83

#B45731 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#B45731 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B45731

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B45731	#FFFFFF	#000000	##FFFFFF
##B45731	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#70652D

Deuteranopia (green-blind)

#877A2F

Tritanopia (blue-blind)

#C5444F

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #b45731;
/* rgb */ color: rgb(180, 87, 49);
/* oklch */ color: oklch(56.4% 0.132 41.8);

Tailwind

colors: {
  custom: {
    50: '#d1886b',
    500: '#b45731',
    950: '#000000',
  },
}

SCSS

$custom: #b45731;
$custom-light: #d1886b;
$custom-dark: #000000;

JSON

{
  "hex": "#b45731",
  "rgb": {
    "r": 180,
    "g": 87,
    "b": 49
  },
  "hsl": {
    "h": 17.405,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.56432,
    "c": 0.13166,
    "h": 41.8
  },
  "luminance": 0.16741
}

Semantic roles & 50–950 ramp

primary

#B45731

secondary

#7BB0C6

accent

#B4E047

background

#FDF8F6

surface

#FBF0EB

border

#D4CBC6

text

#150B07

muted

#837C7A

Preview Lab

Preview with #B45731

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

Preview Lab → · Contrast checker → · Palette generator →