#631719#631719

#631719 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.5% C 0.108 H 23.9°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#631719
RGB	rgb(99, 23, 25)
HSL	hsl(358, 62%, 24%)
HSV	hsv(358, 77%, 39%)
CMYK	cmyk(0%, 76.8%, 74.7%, 61.2%)
CIE-LAB	lab(21.34, 33.92, 19.06)
CIE-LCH	lch(21.34, 38.91, 29.34°)
OKLab	oklab(33.5% 0.0991 0.044)
OKLCH	oklch(33.5% 0.108 23.9)
XYZ	xyz(5.6281, 3.3365, 1.2672)
Luminance	0.0334 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631719 #176361

analogous

#63173F #631719 #633B17

triadic

#631719 #196317 #171963

tetradic

#631719 #3F6317 #176361 #3B1763

square

#631719 #3F6317 #176361 #3B1763

split-complementary

#631719 #17633B #173F63

monochromatic

#190606 #310B0C #631719 #952326 #C62E32

Accessibility & contrast

On white

12.60

#631719 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#631719 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631719

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631719	#FFFFFF	#000000	##FFFFFF
##631719	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2918

Deuteranopia (green-blind)

#403917

Tritanopia (blue-blind)

#6D0019

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631719;
/* rgb */ color: rgb(99, 23, 25);
/* oklch */ color: oklch(33.5% 0.108 23.9);

Tailwind

colors: {
  custom: {
    50: '#965a55',
    500: '#631719',
    950: '#000000',
  },
}

SCSS

$custom: #631719;
$custom-light: #965a55;
$custom-dark: #000000;

JSON

{
  "hex": "#631719",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 25
  },
  "hsl": {
    "h": 358.421,
    "s": 62.295,
    "l": 23.922
  },
  "oklch": {
    "l": 0.33504,
    "c": 0.10838,
    "h": 23.9
  },
  "luminance": 0.03336
}

Semantic roles & 50–950 ramp

primary

#631719

secondary

#3C9A97

accent

#E5E142

background

#F9F5F4

surface

#F2E9E8

border

#CCC5C4

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #631719

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

Preview Lab → · Contrast checker → · Palette generator →