#B9303F#B9303F

#B9303F is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.5% C 0.173 H 19.7°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#B9303F
RGB	rgb(185, 48, 63)
HSL	hsl(353, 59%, 46%)
HSV	hsv(353, 74%, 73%)
CMYK	cmyk(0%, 74.1%, 65.9%, 27.5%)
CIE-LAB	lab(42.45, 54.91, 24.60)
CIE-LCH	lch(42.45, 60.17, 24.14°)
OKLab	oklab(52.52% 0.1626 0.0584)
OKLCH	oklch(52.52% 0.173 19.7)
XYZ	xyz(21.9641, 12.7903, 6.0139)
Luminance	0.1279 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B9303F #30B9AA

analogous

#B93083 #B9303F #B96630

triadic

#B9303F #3FB930 #303FB9

tetradic

#B9303F #83B930 #30B9AA #6630B9

square

#B9303F #83B930 #30B9AA #6630B9

split-complementary

#B9303F #30B966 #3083B9

monochromatic

#58171E #88232E #B9303F #D35462 #DF848E

Accessibility & contrast

On white

5.90

#B9303F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B9303F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B9303F

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B9303F	#FFFFFF	#000000	##FFFFFF
##B9303F	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57523F

Deuteranopia (green-blind)

#796F3B

Tritanopia (blue-blind)

#CB0037

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b9303f;
/* rgb */ color: rgb(185, 48, 63);
/* oklch */ color: oklch(52.5% 0.173 19.7);

Tailwind

colors: {
  custom: {
    50: '#d67374',
    500: '#b9303f',
    950: '#000000',
  },
}

SCSS

$custom: #b9303f;
$custom-light: #d67374;
$custom-dark: #000000;

JSON

{
  "hex": "#b9303f",
  "rgb": {
    "r": 185,
    "g": 48,
    "b": 63
  },
  "hsl": {
    "h": 353.431,
    "s": 58.798,
    "l": 45.686
  },
  "oklch": {
    "l": 0.5252,
    "c": 0.17271,
    "h": 19.7
  },
  "luminance": 0.12787
}

Semantic roles & 50–950 ramp

primary

#B9303F

secondary

#7CC9C0

accent

#E2D146

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #B9303F

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

Preview Lab → · Contrast checker → · Palette generator →