#631511#631511

#631511 is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.2% C 0.111 H 27.9°. Best body text is #FFFFFF at 12.76:1 contrast (WCAG AA passes).

Color values

HEX	#631511
RGB	rgb(99, 21, 17)
HSL	hsl(3, 71%, 23%)
HSV	hsv(3, 83%, 39%)
CMYK	cmyk(0%, 78.8%, 82.8%, 61.2%)
CIE-LAB	lab(20.94, 34.34, 23.76)
CIE-LCH	lch(20.94, 41.76, 34.68°)
OKLab	oklab(33.17% 0.0985 0.0522)
OKLCH	oklch(33.17% 0.111 27.9)
XYZ	xyz(5.5156, 3.2303, 0.8633)
Luminance	0.0323 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631511 #115F63

analogous

#631136 #631511 #633E11

triadic

#631511 #116315 #151163

tetradic

#631511 #366311 #115F63 #3E1163

square

#631511 #366311 #115F63 #3E1163

split-complementary

#631511 #11633E #113663

monochromatic

#1A0604 #2F0A08 #631511 #97201A #CB2B23

Accessibility & contrast

On white

12.76

#631511 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#631511 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631511

12.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631511	#FFFFFF	#000000	##FFFFFF
##631511	1.00	12.76	1.65	12.76
#FFFFFF	12.76	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2710

Deuteranopia (green-blind)

#40390E

Tritanopia (blue-blind)

#6E0015

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #631511;
/* rgb */ color: rgb(99, 21, 17);
/* oklch */ color: oklch(33.2% 0.111 27.9);

Tailwind

colors: {
  custom: {
    50: '#97594f',
    500: '#631511',
    950: '#000000',
  },
}

SCSS

$custom: #631511;
$custom-light: #97594f;
$custom-dark: #000000;

JSON

{
  "hex": "#631511",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 17
  },
  "hsl": {
    "h": 2.927,
    "s": 70.69,
    "l": 22.745
  },
  "oklch": {
    "l": 0.33169,
    "c": 0.11148,
    "h": 27.9
  },
  "luminance": 0.03229
}

Semantic roles & 50–950 ramp

primary

#631511

secondary

#34969B

accent

#E5ED3A

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #631511

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

Preview Lab → · Contrast checker → · Palette generator →