#903537#903537

#903537 is a mid, vivid red. Relative luminance 0.088; OKLCH L 45.9% C 0.124 H 22.1°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#903537
RGB	rgb(144, 53, 55)
HSL	hsl(359, 46%, 39%)
HSV	hsv(359, 63%, 56%)
CMYK	cmyk(0%, 63.2%, 61.8%, 43.5%)
CIE-LAB	lab(35.50, 38.65, 19.17)
CIE-LCH	lch(35.50, 43.15, 26.38°)
OKLab	oklab(45.89% 0.1145 0.0464)
OKLCH	oklch(45.89% 0.124 22.1)
XYZ	xyz(13.4655, 8.7531, 4.5941)
Luminance	0.0875 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#903537 #35908E

analogous

#903564 #903537 #906035

triadic

#903537 #379035 #353790

tetradic

#903537 #649035 #35908E #603590

square

#903537 #649035 #35908E #603590

split-complementary

#903537 #359060 #356490

monochromatic

#371415 #632526 #903537 #BB4749 #CC7476

Accessibility & contrast

On white

7.64

#903537 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#903537 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #903537

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##903537	#FFFFFF	#000000	##FFFFFF
##903537	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4736

Deuteranopia (green-blind)

#635B35

Tritanopia (blue-blind)

#9E2337

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #903537;
/* rgb */ color: rgb(144, 53, 55);
/* oklch */ color: oklch(45.9% 0.124 22.1);

Tailwind

colors: {
  custom: {
    50: '#b6716d',
    500: '#903537',
    950: '#000000',
  },
}

SCSS

$custom: #903537;
$custom-light: #b6716d;
$custom-dark: #000000;

JSON

{
  "hex": "#903537",
  "rgb": {
    "r": 144,
    "g": 53,
    "b": 55
  },
  "hsl": {
    "h": 358.681,
    "s": 46.193,
    "l": 38.627
  },
  "oklch": {
    "l": 0.45889,
    "c": 0.12354,
    "h": 22.1
  },
  "luminance": 0.08751
}

Semantic roles & 50–950 ramp

primary

#903537

secondary

#6DB4B3

accent

#D6D352

background

#FBF7F6

surface

#F7EDEB

border

#D0C8C6

text

#120807

muted

#817B7A

Preview Lab

Preview with #903537

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

Preview Lab → · Contrast checker → · Palette generator →