#511C28#511C28

#511C28 is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.1% C 0.080 H 9.1°. Best body text is #FFFFFF at 13.58:1 contrast (WCAG AA passes).

Color values

HEX	#511C28
RGB	rgb(81, 28, 40)
HSL	hsl(346, 49%, 21%)
HSV	hsv(346, 65%, 32%)
CMYK	cmyk(0%, 65.4%, 50.6%, 68.2%)
CIE-LAB	lab(18.94, 26.04, 4.85)
CIE-LCH	lch(18.94, 26.49, 10.55°)
OKLab	oklab(31.14% 0.0791 0.0126)
OKLCH	oklch(31.14% 0.08 9.1)
XYZ	xyz(4.1919, 2.7335, 2.3139)
Luminance	0.0273 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C28 #1C5145

analogous

#511C43 #511C28 #512B1C

triadic

#511C28 #28511C #1C2851

tetradic

#511C28 #43511C #1C5145 #2B1C51

square

#511C28 #43511C #1C5145 #2B1C51

split-complementary

#511C28 #1C512B #1C4351

monochromatic

#17080B #240C12 #511C28 #7E2C3E #AC3B55

Accessibility & contrast

On white

13.58

#511C28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#511C28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C28

13.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C28	#FFFFFF	#000000	##FFFFFF
##511C28	1.00	13.58	1.55	13.58
#FFFFFF	13.58	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#272728

Deuteranopia (green-blind)

#353227

Tritanopia (blue-blind)

#581521

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511c28;
/* rgb */ color: rgb(81, 28, 40);
/* oklch */ color: oklch(31.1% 0.080 9.1);

Tailwind

colors: {
  custom: {
    50: '#855b61',
    500: '#511c28',
    950: '#000000',
  },
}

SCSS

$custom: #511c28;
$custom-light: #855b61;
$custom-dark: #000000;

JSON

{
  "hex": "#511c28",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 40
  },
  "hsl": {
    "h": 346.415,
    "s": 48.624,
    "l": 21.373
  },
  "oklch": {
    "l": 0.31143,
    "c": 0.08007,
    "h": 9.1
  },
  "luminance": 0.02733
}

Semantic roles & 50–950 ramp

primary

#511C28

secondary

#428777

accent

#D8B950

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0B0405

muted

#7C7979

Preview Lab

Preview with #511C28

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

Preview Lab → · Contrast checker → · Palette generator →