#B03D30#B03D30

#B03D30 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.1% C 0.152 H 29.6°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#B03D30
RGB	rgb(176, 61, 48)
HSL	hsl(6, 57%, 44%)
HSV	hsv(6, 73%, 69%)
CMYK	cmyk(0%, 65.3%, 72.7%, 31%)
CIE-LAB	lab(42.44, 46.06, 33.15)
CIE-LCH	lch(42.44, 56.75, 35.75°)
OKLab	oklab(52.14% 0.1325 0.0752)
OKLCH	oklch(52.14% 0.152 29.6)
XYZ	xyz(20.1089, 12.7839, 4.2044)
Luminance	0.1278 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03D30 #30A3B0

analogous

#B03063 #B03D30 #B07D30

triadic

#B03D30 #30B03D #3D30B0

tetradic

#B03D30 #63B030 #30A3B0 #7D30B0

square

#B03D30 #63B030 #30A3B0 #7D30B0

split-complementary

#B03D30 #30B07D #3063B0

monochromatic

#501C16 #802C23 #B03D30 #CF5B4E #DC887E

Accessibility & contrast

On white

5.91

#B03D30 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B03D30 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03D30

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03D30	#FFFFFF	#000000	##FFFFFF
##B03D30	1.00	5.91	3.56	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D542E

Deuteranopia (green-blind)

#796D2C

Tritanopia (blue-blind)

#C11F3B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b03d30;
/* rgb */ color: rgb(176, 61, 48);
/* oklch */ color: oklch(52.1% 0.152 29.6);

Tailwind

colors: {
  custom: {
    50: '#cf7869',
    500: '#b03d30',
    950: '#000000',
  },
}

SCSS

$custom: #b03d30;
$custom-light: #cf7869;
$custom-dark: #000000;

JSON

{
  "hex": "#b03d30",
  "rgb": {
    "r": 176,
    "g": 61,
    "b": 48
  },
  "hsl": {
    "h": 6.094,
    "s": 57.143,
    "l": 43.922
  },
  "oklch": {
    "l": 0.52137,
    "c": 0.1524,
    "h": 29.6
  },
  "luminance": 0.12781
}

Semantic roles & 50–950 ramp

primary

#B03D30

secondary

#77BDC5

accent

#D1E047

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B03D30

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

Preview Lab → · Contrast checker → · Palette generator →