#511F15#511F15

#511F15 is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.2% C 0.078 H 33.0°. Best body text is #FFFFFF at 13.49:1 contrast (WCAG AA passes).

Color values

HEX	#511F15
RGB	rgb(81, 31, 21)
HSL	hsl(10, 59%, 20%)
HSV	hsv(10, 74%, 32%)
CMYK	cmyk(0%, 61.7%, 74.1%, 68.2%)
CIE-LAB	lab(19.16, 22.65, 18.25)
CIE-LCH	lch(19.16, 29.09, 38.85°)
OKLab	oklab(31.17% 0.0652 0.0423)
OKLCH	oklch(31.17% 0.078 33)
XYZ	xyz(4.0191, 2.7840, 1.0350)
Luminance	0.0278 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F15 #154751

analogous

#511529 #511F15 #513D15

triadic

#511F15 #15511F #1F1551

tetradic

#511F15 #295115 #154751 #3D1551

square

#511F15 #295115 #154751 #3D1551

split-complementary

#511F15 #15513D #152951

monochromatic

#180906 #200C08 #511F15 #823222 #B2442E

Accessibility & contrast

On white

13.49

#511F15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#511F15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F15

13.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F15	#FFFFFF	#000000	##FFFFFF
##511F15	1.00	13.49	1.56	13.49
#FFFFFF	13.49	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2814

Deuteranopia (green-blind)

#393314

Tritanopia (blue-blind)

#59151D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511f15;
/* rgb */ color: rgb(81, 31, 21);
/* oklch */ color: oklch(31.2% 0.078 33.0);

Tailwind

colors: {
  custom: {
    50: '#865c52',
    500: '#511f15',
    950: '#000000',
  },
}

SCSS

$custom: #511f15;
$custom-light: #865c52;
$custom-dark: #000000;

JSON

{
  "hex": "#511f15",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 21
  },
  "hsl": {
    "h": 10,
    "s": 58.824,
    "l": 20
  },
  "oklch": {
    "l": 0.31167,
    "c": 0.07772,
    "h": 33
  },
  "luminance": 0.02783
}

Semantic roles & 50–950 ramp

primary

#511F15

secondary

#397C89

accent

#C8E246

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0402

muted

#7D7978

Preview Lab

Preview with #511F15

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

Preview Lab → · Contrast checker → · Palette generator →