#631527#631527

#631527 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.6% C 0.110 H 12.3°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#631527
RGB	rgb(99, 21, 39)
HSL	hsl(346, 65%, 24%)
HSV	hsv(346, 79%, 39%)
CMYK	cmyk(0%, 78.8%, 60.6%, 61.2%)
CIE-LAB	lab(21.34, 35.67, 9.43)
CIE-LCH	lch(21.34, 36.89, 14.81°)
OKLab	oklab(33.6% 0.1077 0.0235)
OKLCH	oklch(33.6% 0.11 12.3)
XYZ	xyz(5.7805, 3.3363, 2.2586)
Luminance	0.0333 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631527 #156351

analogous

#63154E #631527 #632A15

triadic

#631527 #276315 #152763

tetradic

#631527 #4E6315 #156351 #2A1563

square

#631527 #4E6315 #156351 #2A1563

split-complementary

#631527 #15632A #154E63

monochromatic

#19050A #310A13 #631527 #95203B #C82A4F

Accessibility & contrast

On white

12.60

#631527 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#631527 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631527

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631527	#FFFFFF	#000000	##FFFFFF
##631527	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)

#2A2927

Deuteranopia (green-blind)

#3E3925

Tritanopia (blue-blind)

#6D011C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631527;
/* rgb */ color: rgb(99, 21, 39);
/* oklch */ color: oklch(33.6% 0.110 12.3);

Tailwind

colors: {
  custom: {
    50: '#955a60',
    500: '#631527',
    950: '#000000',
  },
}

SCSS

$custom: #631527;
$custom-light: #955a60;
$custom-dark: #000000;

JSON

{
  "hex": "#631527",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 39
  },
  "hsl": {
    "h": 346.154,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.33595,
    "c": 0.11025,
    "h": 12.3
  },
  "luminance": 0.03335
}

Semantic roles & 50–950 ramp

primary

#631527

secondary

#3A9A84

accent

#E8C140

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0405

muted

#7E7979

Preview Lab

Preview with #631527

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

Preview Lab → · Contrast checker → · Palette generator →