#1B100B#1B100B

#1B100B is a very dark, muted orange. Relative luminance 0.006; OKLCH L 18.6% C 0.021 H 45.4°. Best body text is #FFFFFF at 18.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B100B
RGB	rgb(27, 16, 11)
HSL	hsl(19, 42%, 7%)
HSV	hsv(19, 59%, 11%)
CMYK	cmyk(0%, 40.7%, 59.3%, 89.4%)
CIE-LAB	lab(5.67, 4.14, 4.04)
CIE-LCH	lch(5.67, 5.78, 44.33°)
OKLab	oklab(18.63% 0.0149 0.0151)
OKLCH	oklch(18.63% 0.021 45.4)
XYZ	xyz(0.6977, 0.6278, 0.4010)
Luminance	0.0063 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B100B #0B161B

analogous

#1B0B0E #1B100B #1B180B

triadic

#1B100B #0B1B10 #100B1B

tetradic

#1B100B #0E1B0B #0B161B #180B1B

square

#1B100B #0E1B0B #0B161B #180B1B

split-complementary

#1B100B #0B1B18 #0B0E1B

monochromatic

#160D09 #160D09 #1B100B #462A1D #72442E

Accessibility & contrast

On white

18.66

#1B100B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#1B100B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B100B

18.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B100B	#FFFFFF	#000000	##FFFFFF
##1B100B	1.00	18.66	1.13	18.66
#FFFFFF	18.66	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13110B

Deuteranopia (green-blind)

#15130B

Tritanopia (blue-blind)

#1E0E0F

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #1b100b;
/* rgb */ color: rgb(27, 16, 11);
/* oklch */ color: oklch(18.6% 0.021 45.4);

Tailwind

colors: {
  custom: {
    50: '#564e4c',
    500: '#1b100b',
    950: '#000000',
  },
}

SCSS

$custom: #1b100b;
$custom-light: #564e4c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b100b",
  "rgb": {
    "r": 27,
    "g": 16,
    "b": 11
  },
  "hsl": {
    "h": 18.75,
    "s": 42.105,
    "l": 7.451
  },
  "oklch": {
    "l": 0.18633,
    "c": 0.02117,
    "h": 45.4
  },
  "luminance": 0.00628
}

Semantic roles & 50–950 ramp

primary

#1B100B

secondary

#2E4854

accent

#ABD256

background

#F5F4F4

surface

#E9E7E7

border

#C5C3C3

text

#030101

muted

#787777

Preview Lab

Preview with #1B100B

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

Preview Lab → · Contrast checker → · Palette generator →