#B43F17#B43F17

#B43F17 is a mid, vivid orange. Relative luminance 0.133; OKLCH L 52.8% C 0.160 H 37.6°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#B43F17
RGB	rgb(180, 63, 23)
HSL	hsl(15, 77%, 40%)
HSV	hsv(15, 87%, 71%)
CMYK	cmyk(0%, 65%, 87.2%, 29.4%)
CIE-LAB	lab(43.25, 45.73, 46.95)
CIE-LCH	lch(43.25, 65.54, 45.75°)
OKLab	oklab(52.81% 0.1266 0.0975)
OKLCH	oklch(52.81% 0.16 37.6)
XYZ	xyz(20.7570, 13.3232, 2.2891)
Luminance	0.1332 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43F17 #178CB4

analogous

#B4173D #B43F17 #B48E17

triadic

#B43F17 #17B43F #3F17B4

tetradic

#B43F17 #3DB417 #178CB4 #8E17B4

square

#B43F17 #3DB417 #178CB4 #8E17B4

split-complementary

#B43F17 #17B48E #173DB4

monochromatic

#471909 #7E2C10 #B43F17 #E35525 #EA805B

Accessibility & contrast

On white

5.73

#B43F17 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#B43F17 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43F17

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43F17	#FFFFFF	#000000	##FFFFFF
##B43F17	1.00	5.73	3.66	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61560F

Deuteranopia (green-blind)

#7E7010

Tritanopia (blue-blind)

#C61C38

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b43f17;
/* rgb */ color: rgb(180, 63, 23);
/* oklch */ color: oklch(52.8% 0.160 37.6);

Tailwind

colors: {
  custom: {
    50: '#d47959',
    500: '#b43f17',
    950: '#000000',
  },
}

SCSS

$custom: #b43f17;
$custom-light: #d47959;
$custom-dark: #000000;

JSON

{
  "hex": "#b43f17",
  "rgb": {
    "r": 180,
    "g": 63,
    "b": 23
  },
  "hsl": {
    "h": 15.287,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.52807,
    "c": 0.1598,
    "h": 37.6
  },
  "luminance": 0.1332
}

Semantic roles & 50–950 ramp

primary

#B43F17

secondary

#59B0CE

accent

#C3F434

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B43F17

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

Preview Lab → · Contrast checker → · Palette generator →