#671B2B#671B2B

#671B2B is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.1% C 0.108 H 12.4°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#671B2B
RGB	rgb(103, 27, 43)
HSL	hsl(347, 58%, 25%)
HSV	hsv(347, 74%, 40%)
CMYK	cmyk(0%, 73.8%, 58.3%, 59.6%)
CIE-LAB	lab(23.14, 34.92, 9.25)
CIE-LCH	lch(23.14, 36.13, 14.84°)
OKLab	oklab(35.12% 0.1055 0.0232)
OKLCH	oklch(35.12% 0.108 12.4)
XYZ	xyz(6.4221, 3.8427, 2.6886)
Luminance	0.0384 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#671B2B #1B6757

analogous

#671B51 #671B2B #67311B

triadic

#671B2B #2B671B #1B2B67

tetradic

#671B2B #51671B #1B6757 #311B67

square

#671B2B #51671B #1B6757 #311B67

split-complementary

#671B2B #1B6731 #1B5167

monochromatic

#18060A #370E17 #671B2B #97283F #C83453

Accessibility & contrast

On white

11.88

#671B2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#671B2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #671B2B

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##671B2B	#FFFFFF	#000000	##FFFFFF
##671B2B	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)

#2E2D2B

Deuteranopia (green-blind)

#423D29

Tritanopia (blue-blind)

#710A21

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #671b2b;
/* rgb */ color: rgb(103, 27, 43);
/* oklch */ color: oklch(35.1% 0.108 12.4);

Tailwind

colors: {
  custom: {
    50: '#975d64',
    500: '#671b2b',
    950: '#000000',
  },
}

SCSS

$custom: #671b2b;
$custom-light: #975d64;
$custom-dark: #000000;

JSON

{
  "hex": "#671b2b",
  "rgb": {
    "r": 103,
    "g": 27,
    "b": 43
  },
  "hsl": {
    "h": 347.368,
    "s": 58.462,
    "l": 25.49
  },
  "oklch": {
    "l": 0.35115,
    "c": 0.10802,
    "h": 12.4
  },
  "luminance": 0.03842
}

Semantic roles & 50–950 ramp

primary

#671B2B

secondary

#429C89

accent

#E2C146

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0505

muted

#7E7979

Preview Lab

Preview with #671B2B

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

Preview Lab → · Contrast checker → · Palette generator →