#90283B#90283B

#90283B is a dark, vivid red. Relative luminance 0.078; OKLCH L 44.4% C 0.139 H 14.4°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#90283B
RGB	rgb(144, 40, 59)
HSL	hsl(349, 57%, 36%)
HSV	hsv(349, 72%, 56%)
CMYK	cmyk(0%, 72.2%, 59%, 43.5%)
CIE-LAB	lab(33.49, 44.64, 13.95)
CIE-LCH	lch(33.49, 46.77, 17.35°)
OKLab	oklab(44.41% 0.1343 0.0346)
OKLCH	oklch(44.41% 0.139 14.4)
XYZ	xyz(13.0511, 7.7645, 4.9483)
Luminance	0.0776 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90283B #28907D

analogous

#90286F #90283B #904928

triadic

#90283B #3B9028 #283B90

tetradic

#90283B #6F9028 #28907D #492890

square

#90283B #6F9028 #28907D #492890

split-complementary

#90283B #289049 #286F90

monochromatic

#300D14 #601B27 #90283B #C0354F #D36075

Accessibility & contrast

On white

8.23

#90283B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#90283B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90283B

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90283B	#FFFFFF	#000000	##FFFFFF
##90283B	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43413B

Deuteranopia (green-blind)

#5E5738

Tritanopia (blue-blind)

#9E0E30

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #90283b;
/* rgb */ color: rgb(144, 40, 59);
/* oklch */ color: oklch(44.4% 0.139 14.4);

Tailwind

colors: {
  custom: {
    50: '#b66a70',
    500: '#90283b',
    950: '#000000',
  },
}

SCSS

$custom: #90283b;
$custom-light: #b66a70;
$custom-dark: #000000;

JSON

{
  "hex": "#90283b",
  "rgb": {
    "r": 144,
    "g": 40,
    "b": 59
  },
  "hsl": {
    "h": 349.038,
    "s": 56.522,
    "l": 36.078
  },
  "oklch": {
    "l": 0.44408,
    "c": 0.13864,
    "h": 14.4
  },
  "luminance": 0.07763
}

Semantic roles & 50–950 ramp

primary

#90283B

secondary

#5CB8A7

accent

#E0C448

background

#FBF6F6

surface

#F7EBEC

border

#D0C6C7

text

#120707

muted

#817A7A

Preview Lab

Preview with #90283B

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

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