#B03129#B03129

#B03129 is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.7% C 0.165 H 28.1°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#B03129
RGB	rgb(176, 49, 41)
HSL	hsl(4, 62%, 43%)
HSV	hsv(4, 77%, 69%)
CMYK	cmyk(0%, 72.2%, 76.7%, 31%)
CIE-LAB	lab(40.56, 50.64, 35.08)
CIE-LCH	lch(40.56, 61.60, 34.71°)
OKLab	oklab(50.7% 0.1455 0.0778)
OKLCH	oklch(50.7% 0.165 28.1)
XYZ	xyz(19.4053, 11.5898, 3.3127)
Luminance	0.1159 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03129 #29A8B0

analogous

#B02964 #B03129 #B07529

triadic

#B03129 #29B031 #3129B0

tetradic

#B03129 #64B029 #29A8B0 #7529B0

square

#B03129 #64B029 #29A8B0 #7529B0

split-complementary

#B03129 #29B075 #2964B0

monochromatic

#4D1512 #7E231D #B03129 #D34C43 #DF7B75

Accessibility & contrast

On white

6.33

#B03129 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#B03129 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03129

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03129	#FFFFFF	#000000	##FFFFFF
##B03129	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564E27

Deuteranopia (green-blind)

#766A24

Tritanopia (blue-blind)

#C20030

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b03129;
/* rgb */ color: rgb(176, 49, 41);
/* oklch */ color: oklch(50.7% 0.165 28.1);

Tailwind

colors: {
  custom: {
    50: '#d07263',
    500: '#b03129',
    950: '#000000',
  },
}

SCSS

$custom: #b03129;
$custom-light: #d07263;
$custom-dark: #000000;

JSON

{
  "hex": "#b03129",
  "rgb": {
    "r": 176,
    "g": 49,
    "b": 41
  },
  "hsl": {
    "h": 3.556,
    "s": 62.212,
    "l": 42.549
  },
  "oklch": {
    "l": 0.50702,
    "c": 0.16494,
    "h": 28.1
  },
  "luminance": 0.11587
}

Semantic roles & 50–950 ramp

primary

#B03129

secondary

#6FC1C6

accent

#DCE543

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B03129

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

Preview Lab → · Contrast checker → · Palette generator →