#191B04#191B04

#191B04 is a very dark, muted yellow. Relative luminance 0.010; OKLCH L 21.4% C 0.040 H 113.7°. Best body text is #FFFFFF at 17.50:1 contrast (WCAG AA passes).

Color values

HEX	#191B04
RGB	rgb(25, 27, 4)
HSL	hsl(65, 74%, 6%)
HSV	hsv(65, 85%, 11%)
CMYK	cmyk(7.4%, 0%, 85.2%, 89.4%)
CIE-LAB	lab(8.99, -5.35, 11.70)
CIE-LCH	lch(8.99, 12.87, 114.58°)
OKLab	oklab(21.36% -0.0161 0.0367)
OKLCH	oklch(21.36% 0.04 113.7)
XYZ	xyz(0.8148, 0.9993, 0.2648)
Luminance	0.0100 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#191B04 #06041B

analogous

#1B1104 #191B04 #0D1B04

triadic

#191B04 #04191B #1B0419

tetradic

#191B04 #041B11 #06041B #1B040D

square

#191B04 #041B11 #06041B #1B040D

split-complementary

#191B04 #040D1B #11041B

monochromatic

#191B04 #191B04 #191B04 #4A500C #7C8614

Accessibility & contrast

On white

17.50

#191B04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#191B04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #191B04

17.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##191B04	#FFFFFF	#000000	##FFFFFF
##191B04	1.00	17.50	1.20	17.50
#FFFFFF	17.50	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E1902

Deuteranopia (green-blind)

#1E1A05

Tritanopia (blue-blind)

#1B1916

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #191b04;
/* rgb */ color: rgb(25, 27, 4);
/* oklch */ color: oklch(21.4% 0.040 113.7);

Tailwind

colors: {
  custom: {
    50: '#555748',
    500: '#191b04',
    950: '#000000',
  },
}

SCSS

$custom: #191b04;
$custom-light: #555748;
$custom-dark: #000000;

JSON

{
  "hex": "#191b04",
  "rgb": {
    "r": 25,
    "g": 27,
    "b": 4
  },
  "hsl": {
    "h": 65.217,
    "s": 74.194,
    "l": 6.078
  },
  "oklch": {
    "l": 0.21355,
    "c": 0.04005,
    "h": 113.7
  },
  "luminance": 0.00999
}

Semantic roles & 50–950 ramp

primary

#191B04

secondary

#231E5D

accent

#37F147

background

#F4F5F4

surface

#E8E9E6

border

#C4C5C2

text

#030300

muted

#787877

Preview Lab

Preview with #191B04

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

Preview Lab → · Contrast checker → · Palette generator →