#631E2F#631E2F

#631E2F is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.9% C 0.100 H 9.1°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#631E2F
RGB	rgb(99, 30, 47)
HSL	hsl(345, 53%, 25%)
HSV	hsv(345, 70%, 39%)
CMYK	cmyk(0%, 69.7%, 52.5%, 61.2%)
CIE-LAB	lab(22.96, 32.53, 6.11)
CIE-LCH	lch(22.96, 33.10, 10.64°)
OKLab	oklab(34.86% 0.0988 0.0158)
OKLCH	oklch(34.86% 0.1 9.1)
XYZ	xyz(6.1234, 3.7872, 3.0973)
Luminance	0.0379 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631E2F #1E6352

analogous

#631E51 #631E2F #632F1E

triadic

#631E2F #2F631E #1E2F63

tetradic

#631E2F #51631E #1E6352 #2F1E63

square

#631E2F #51631E #1E6352 #2F1E63

split-complementary

#631E2F #1E632F #1E5163

monochromatic

#17070B #341019 #631E2F #922C45 #C13A5C

Accessibility & contrast

On white

11.95

#631E2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#631E2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631E2F

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631E2F	#FFFFFF	#000000	##FFFFFF
##631E2F	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2E2F

Deuteranopia (green-blind)

#403C2D

Tritanopia (blue-blind)

#6C1325

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #631e2f;
/* rgb */ color: rgb(99, 30, 47);
/* oklch */ color: oklch(34.9% 0.100 9.1);

Tailwind

colors: {
  custom: {
    50: '#935f67',
    500: '#631e2f',
    950: '#000000',
  },
}

SCSS

$custom: #631e2f;
$custom-light: #935f67;
$custom-dark: #000000;

JSON

{
  "hex": "#631e2f",
  "rgb": {
    "r": 99,
    "g": 30,
    "b": 47
  },
  "hsl": {
    "h": 345.217,
    "s": 53.488,
    "l": 25.294
  },
  "oklch": {
    "l": 0.34861,
    "c": 0.10008,
    "h": 9.1
  },
  "luminance": 0.03786
}

Semantic roles & 50–950 ramp

primary

#631E2F

secondary

#459883

accent

#DDB94B

background

#F9F5F6

surface

#F2E9EB

border

#CCC5C6

text

#0E0506

muted

#7E797A

Preview Lab

Preview with #631E2F

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

Preview Lab → · Contrast checker → · Palette generator →