#671C1F#671C1F

#671C1F is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.0% C 0.107 H 22.5°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#671C1F
RGB	rgb(103, 28, 31)
HSL	hsl(358, 57%, 26%)
HSV	hsv(358, 73%, 40%)
CMYK	cmyk(0%, 72.8%, 69.9%, 59.6%)
CIE-LAB	lab(23.05, 33.58, 17.31)
CIE-LCH	lch(23.05, 37.78, 27.26°)
OKLab	oklab(34.96% 0.0988 0.0409)
OKLCH	oklch(34.96% 0.107 22.5)
XYZ	xyz(6.2567, 3.8139, 1.7028)
Luminance	0.0381 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#671C1F #1C6764

analogous

#671C44 #671C1F #673E1C

triadic

#671C1F #1F671C #1C1F67

tetradic

#671C1F #44671C #1C6764 #3E1C67

square

#671C1F #44671C #1C6764 #3E1C67

split-complementary

#671C1F #1C673E #1C4467

monochromatic

#180707 #370F11 #671C1F #97292D #C7363C

Accessibility & contrast

On white

11.91

#671C1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#671C1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #671C1F

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##671C1F	#FFFFFF	#000000	##FFFFFF
##671C1F	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302D1E

Deuteranopia (green-blind)

#433D1D

Tritanopia (blue-blind)

#72071E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #671c1f;
/* rgb */ color: rgb(103, 28, 31);
/* oklch */ color: oklch(35.0% 0.107 22.5);

Tailwind

colors: {
  custom: {
    50: '#985e5a',
    500: '#671c1f',
    950: '#000000',
  },
}

SCSS

$custom: #671c1f;
$custom-light: #985e5a;
$custom-dark: #000000;

JSON

{
  "hex": "#671c1f",
  "rgb": {
    "r": 103,
    "g": 28,
    "b": 31
  },
  "hsl": {
    "h": 357.6,
    "s": 57.252,
    "l": 25.686
  },
  "oklch": {
    "l": 0.34959,
    "c": 0.10695,
    "h": 22.5
  },
  "luminance": 0.03813
}

Semantic roles & 50–950 ramp

primary

#671C1F

secondary

#439C98

accent

#E1DA47

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #671C1F

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

Preview Lab → · Contrast checker → · Palette generator →