#631111#631111

#631111 is a dark, moderate red. Relative luminance 0.031; OKLCH L 32.8% C 0.115 H 26.3°. Best body text is #FFFFFF at 12.97:1 contrast (WCAG AA passes).

Color values

HEX	#631111
RGB	rgb(99, 17, 17)
HSL	hsl(0, 71%, 23%)
HSV	hsv(0, 83%, 39%)
CMYK	cmyk(0%, 82.8%, 82.8%, 61.2%)
CIE-LAB	lab(20.42, 35.80, 23.18)
CIE-LCH	lch(20.42, 42.65, 32.93°)
OKLab	oklab(32.78% 0.1031 0.051)
OKLCH	oklch(32.78% 0.115 26.3)
XYZ	xyz(5.4479, 3.0949, 0.8407)
Luminance	0.0309 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631111 #116363

analogous

#63113A #631111 #633A11

triadic

#631111 #116311 #111163

tetradic

#631111 #3A6311 #116363 #3A1163

square

#631111 #3A6311 #116363 #3A1163

split-complementary

#631111 #11633A #113A63

monochromatic

#1A0404 #2F0808 #631111 #971A1A #CB2323

Accessibility & contrast

On white

12.97

#631111 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#631111 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631111

12.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631111	#FFFFFF	#000000	##FFFFFF
##631111	1.00	12.97	1.62	12.97
#FFFFFF	12.97	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2610

Deuteranopia (green-blind)

#3F380D

Tritanopia (blue-blind)

#6E0012

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #631111;
/* rgb */ color: rgb(99, 17, 17);
/* oklch */ color: oklch(32.8% 0.115 26.3);

Tailwind

colors: {
  custom: {
    50: '#97584f',
    500: '#631111',
    950: '#000000',
  },
}

SCSS

$custom: #631111;
$custom-light: #97584f;
$custom-dark: #000000;

JSON

{
  "hex": "#631111",
  "rgb": {
    "r": 99,
    "g": 17,
    "b": 17
  },
  "hsl": {
    "h": 0,
    "s": 70.69,
    "l": 22.745
  },
  "oklch": {
    "l": 0.3278,
    "c": 0.11503,
    "h": 26.3
  },
  "luminance": 0.03094
}

Semantic roles & 50–950 ramp

primary

#631111

secondary

#349B9B

accent

#EDED3A

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #631111

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

Preview Lab → · Contrast checker → · Palette generator →