#90303B#90303B

#90303B is a mid, vivid red. Relative luminance 0.084; OKLCH L 45.3% C 0.129 H 17.3°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#90303B
RGB	rgb(144, 48, 59)
HSL	hsl(353, 50%, 38%)
HSV	hsv(353, 67%, 56%)
CMYK	cmyk(0%, 66.7%, 59%, 43.5%)
CIE-LAB	lab(34.72, 41.27, 15.61)
CIE-LCH	lch(34.72, 44.12, 20.72°)
OKLab	oklab(45.33% 0.1235 0.0385)
OKLCH	oklch(45.33% 0.129 17.3)
XYZ	xyz(13.3492, 8.3607, 5.0477)
Luminance	0.0836 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90303B #309085

analogous

#90306B #90303B #905530

triadic

#90303B #3B9030 #303B90

tetradic

#90303B #6B9030 #309085 #553090

square

#90303B #6B9030 #309085 #553090

split-complementary

#90303B #309055 #306B90

monochromatic

#341115 #622128 #90303B #BE3F4E #CE6C78

Accessibility & contrast

On white

7.86

#90303B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#90303B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90303B

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90303B	#FFFFFF	#000000	##FFFFFF
##90303B	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48453B

Deuteranopia (green-blind)

#605939

Tritanopia (blue-blind)

#9E1D35

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #90303b;
/* rgb */ color: rgb(144, 48, 59);
/* oklch */ color: oklch(45.3% 0.129 17.3);

Tailwind

colors: {
  custom: {
    50: '#b66e70',
    500: '#90303b',
    950: '#000000',
  },
}

SCSS

$custom: #90303b;
$custom-light: #b66e70;
$custom-dark: #000000;

JSON

{
  "hex": "#90303b",
  "rgb": {
    "r": 144,
    "g": 48,
    "b": 59
  },
  "hsl": {
    "h": 353.125,
    "s": 50,
    "l": 37.647
  },
  "oklch": {
    "l": 0.45329,
    "c": 0.12933,
    "h": 17.3
  },
  "luminance": 0.08359
}

Semantic roles & 50–950 ramp

primary

#90303B

secondary

#66B5AC

accent

#DACA4E

background

#FBF6F6

surface

#F7ECEC

border

#D0C7C7

text

#120707

muted

#817A7A

Preview Lab

Preview with #90303B

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

Preview Lab → · Contrast checker → · Palette generator →