#631827#631827

#631827 is a dark, moderate red. Relative luminance 0.035; OKLCH L 33.9% C 0.107 H 13.5°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#631827
RGB	rgb(99, 24, 39)
HSL	hsl(348, 61%, 24%)
HSV	hsv(348, 76%, 39%)
CMYK	cmyk(0%, 75.8%, 60.6%, 61.2%)
CIE-LAB	lab(21.77, 34.47, 10.02)
CIE-LCH	lch(21.77, 35.89, 16.21°)
OKLab	oklab(33.92% 0.1039 0.0249)
OKLCH	oklch(33.92% 0.107 13.5)
XYZ	xyz(5.8390, 3.4532, 2.2781)
Luminance	0.0345 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631827 #186354

analogous

#63184D #631827 #632F18

triadic

#631827 #276318 #182763

tetradic

#631827 #4D6318 #186354 #2F1863

square

#631827 #4D6318 #186354 #2F1863

split-complementary

#631827 #18632F #184D63

monochromatic

#19060A #320C14 #631827 #94243A #C6304E

Accessibility & contrast

On white

12.42

#631827 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#631827 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631827

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631827	#FFFFFF	#000000	##FFFFFF
##631827	1.00	12.42	1.69	12.42
#FFFFFF	12.42	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2A27

Deuteranopia (green-blind)

#3F3A25

Tritanopia (blue-blind)

#6D061E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #631827;
/* rgb */ color: rgb(99, 24, 39);
/* oklch */ color: oklch(33.9% 0.107 13.5);

Tailwind

colors: {
  custom: {
    50: '#945b60',
    500: '#631827',
    950: '#000000',
  },
}

SCSS

$custom: #631827;
$custom-light: #945b60;
$custom-dark: #000000;

JSON

{
  "hex": "#631827",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 39
  },
  "hsl": {
    "h": 348,
    "s": 60.976,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33915,
    "c": 0.10681,
    "h": 13.5
  },
  "luminance": 0.03452
}

Semantic roles & 50–950 ramp

primary

#631827

secondary

#3E9987

accent

#E4C444

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0405

muted

#7E7979

Preview Lab

Preview with #631827

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

Preview Lab → · Contrast checker → · Palette generator →