#671D1B#671D1B

#671D1B is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.0% C 0.106 H 25.8°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#671D1B
RGB	rgb(103, 29, 27)
HSL	hsl(2, 58%, 25%)
HSV	hsv(2, 74%, 40%)
CMYK	cmyk(0%, 71.8%, 73.8%, 59.6%)
CIE-LAB	lab(23.14, 32.89, 20.08)
CIE-LCH	lch(23.14, 38.54, 31.40°)
OKLab	oklab(35.01% 0.0957 0.0464)
OKLCH	oklch(35.01% 0.106 25.8)
XYZ	xyz(6.2314, 3.8423, 1.4502)
Luminance	0.0384 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#671D1B #1B6567

analogous

#671B3F #671D1B #67431B

triadic

#671D1B #1B671D #1D1B67

tetradic

#671D1B #3F671B #1B6567 #431B67

square

#671D1B #3F671B #1B6567 #431B67

split-complementary

#671D1B #1B6743 #1B3F67

monochromatic

#180706 #370F0E #671D1B #972B28 #C83834

Accessibility & contrast

On white

11.88

#671D1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#671D1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #671D1B

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##671D1B	#FFFFFF	#000000	##FFFFFF
##671D1B	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#322D1A

Deuteranopia (green-blind)

#443D19

Tritanopia (blue-blind)

#72081D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #671d1b;
/* rgb */ color: rgb(103, 29, 27);
/* oklch */ color: oklch(35.0% 0.106 25.8);

Tailwind

colors: {
  custom: {
    50: '#985e57',
    500: '#671d1b',
    950: '#000000',
  },
}

SCSS

$custom: #671d1b;
$custom-light: #985e57;
$custom-dark: #000000;

JSON

{
  "hex": "#671d1b",
  "rgb": {
    "r": 103,
    "g": 29,
    "b": 27
  },
  "hsl": {
    "h": 1.579,
    "s": 58.462,
    "l": 25.49
  },
  "oklch": {
    "l": 0.35009,
    "c": 0.10637,
    "h": 25.8
  },
  "luminance": 0.03841
}

Semantic roles & 50–950 ramp

primary

#671D1B

secondary

#429A9C

accent

#DEE246

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0503

muted

#7F7978

Preview Lab

Preview with #671D1B

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

Preview Lab → · Contrast checker → · Palette generator →