#631523#631523

#631523 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.5% C 0.110 H 15.6°. Best body text is #FFFFFF at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#631523
RGB	rgb(99, 21, 35)
HSL	hsl(349, 65%, 24%)
HSV	hsv(349, 79%, 39%)
CMYK	cmyk(0%, 78.8%, 64.6%, 61.2%)
CIE-LAB	lab(21.25, 35.36, 12.10)
CIE-LCH	lch(21.25, 37.37, 18.89°)
OKLab	oklab(33.5% 0.1059 0.0295)
OKLCH	oklch(33.5% 0.11 15.6)
XYZ	xyz(5.7177, 3.3112, 1.9278)
Luminance	0.0331 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631523 #156355

analogous

#63154A #631523 #632E15

triadic

#631523 #236315 #152363

tetradic

#631523 #4A6315 #156355 #2E1563

square

#631523 #4A6315 #156355 #2E1563

split-complementary

#631523 #15632E #154A63

monochromatic

#190509 #310A11 #631523 #952035 #C82A47

Accessibility & contrast

On white

12.64

#631523 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#631523 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631523

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631523	#FFFFFF	#000000	##FFFFFF
##631523	1.00	12.64	1.66	12.64
#FFFFFF	12.64	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2923

Deuteranopia (green-blind)

#3E3921

Tritanopia (blue-blind)

#6D001B

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631523;
/* rgb */ color: rgb(99, 21, 35);
/* oklch */ color: oklch(33.5% 0.110 15.6);

Tailwind

colors: {
  custom: {
    50: '#955a5d',
    500: '#631523',
    950: '#000000',
  },
}

SCSS

$custom: #631523;
$custom-light: #955a5d;
$custom-dark: #000000;

JSON

{
  "hex": "#631523",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 35
  },
  "hsl": {
    "h": 349.231,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.33495,
    "c": 0.10998,
    "h": 15.6
  },
  "luminance": 0.0331
}

Semantic roles & 50–950 ramp

primary

#631523

secondary

#3A9A89

accent

#E8CA40

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #631523

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

Preview Lab → · Contrast checker → · Palette generator →