#B43717#B43717

#B43717 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.167 H 34.8°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B43717
RGB	rgb(180, 55, 23)
HSL	hsl(12, 77%, 40%)
HSV	hsv(12, 87%, 71%)
CMYK	cmyk(0%, 69.4%, 87.2%, 29.4%)
CIE-LAB	lab(42.00, 49.09, 45.93)
CIE-LCH	lch(42.00, 67.23, 43.09°)
OKLab	oklab(51.87% 0.137 0.0951)
OKLCH	oklch(51.87% 0.167 34.8)
XYZ	xyz(20.3457, 12.5007, 2.1520)
Luminance	0.1250 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43717 #1794B4

analogous

#B41746 #B43717 #B48517

triadic

#B43717 #17B437 #3717B4

tetradic

#B43717 #46B417 #1794B4 #8517B4

square

#B43717 #46B417 #1794B4 #8517B4

split-complementary

#B43717 #17B485 #1746B4

monochromatic

#471609 #7E2610 #B43717 #E34C25 #EA785B

Accessibility & contrast

On white

6.00

#B43717 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B43717 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43717

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43717	#FFFFFF	#000000	##FFFFFF
##B43717	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5111

Deuteranopia (green-blind)

#7B6D0E

Tritanopia (blue-blind)

#C70331

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b43717;
/* rgb */ color: rgb(180, 55, 23);
/* oklch */ color: oklch(51.9% 0.167 34.8);

Tailwind

colors: {
  custom: {
    50: '#d47558',
    500: '#b43717',
    950: '#000000',
  },
}

SCSS

$custom: #b43717;
$custom-light: #d47558;
$custom-dark: #000000;

JSON

{
  "hex": "#b43717",
  "rgb": {
    "r": 180,
    "g": 55,
    "b": 23
  },
  "hsl": {
    "h": 12.229,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.51871,
    "c": 0.16674,
    "h": 34.8
  },
  "luminance": 0.12498
}

Semantic roles & 50–950 ramp

primary

#B43717

secondary

#59B6CE

accent

#CDF434

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160903

muted

#847B78

Preview Lab

Preview with #B43717

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

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