#671B1F#671B1F

#671B1F is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.8% C 0.108 H 22.0°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#671B1F
RGB	rgb(103, 27, 31)
HSL	hsl(357, 58%, 25%)
HSV	hsv(357, 74%, 40%)
CMYK	cmyk(0%, 73.8%, 69.9%, 59.6%)
CIE-LAB	lab(22.89, 34.02, 17.11)
CIE-LCH	lch(22.89, 38.08, 26.70°)
OKLab	oklab(34.84% 0.1002 0.0404)
OKLCH	oklch(34.84% 0.108 22)
XYZ	xyz(6.2334, 3.7673, 1.6950)
Luminance	0.0377 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#671B1F #1B6763

analogous

#671B45 #671B1F #673D1B

triadic

#671B1F #1F671B #1B1F67

tetradic

#671B1F #45671B #1B6763 #3D1B67

square

#671B1F #45671B #1B6763 #3D1B67

split-complementary

#671B1F #1B673D #1B4567

monochromatic

#180607 #370E10 #671B1F #97282E #C8343C

Accessibility & contrast

On white

11.98

#671B1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#671B1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #671B1F

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##671B1F	#FFFFFF	#000000	##FFFFFF
##671B1F	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302C1F

Deuteranopia (green-blind)

#433D1D

Tritanopia (blue-blind)

#72051D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #671b1f;
/* rgb */ color: rgb(103, 27, 31);
/* oklch */ color: oklch(34.8% 0.108 22.0);

Tailwind

colors: {
  custom: {
    50: '#985d5a',
    500: '#671b1f',
    950: '#000000',
  },
}

SCSS

$custom: #671b1f;
$custom-light: #985d5a;
$custom-dark: #000000;

JSON

{
  "hex": "#671b1f",
  "rgb": {
    "r": 103,
    "g": 27,
    "b": 31
  },
  "hsl": {
    "h": 356.842,
    "s": 58.462,
    "l": 25.49
  },
  "oklch": {
    "l": 0.34839,
    "c": 0.10807,
    "h": 22
  },
  "luminance": 0.03766
}

Semantic roles & 50–950 ramp

primary

#671B1F

secondary

#429C98

accent

#E2D946

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #671B1F

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

Preview Lab → · Contrast checker → · Palette generator →