#1C1901#1C1901

#1C1901 is a very dark, muted yellow. Relative luminance 0.009; OKLCH L 21.0% C 0.042 H 103.1°. Best body text is #FFFFFF at 17.66:1 contrast (WCAG AA passes).

Color values

HEX	#1C1901
RGB	rgb(28, 25, 1)
HSL	hsl(53, 93%, 6%)
HSV	hsv(53, 96%, 11%)
CMYK	cmyk(0%, 10.7%, 96.4%, 89%)
CIE-LAB	lab(8.52, -2.64, 12.30)
CIE-LCH	lch(8.52, 12.58, 102.11°)
OKLab	oklab(21.05% -0.0096 0.0412)
OKLCH	oklch(21.05% 0.042 103.1)
XYZ	xyz(0.8320, 0.9444, 0.1672)
Luminance	0.0094 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1901 #01041C

analogous

#1C0B01 #1C1901 #111C01

triadic

#1C1901 #011C19 #19011C

tetradic

#1C1901 #011C0B #01041C #1C0111

square

#1C1901 #011C0B #01041C #1C0111

split-complementary

#1C1901 #01111C #0B011C

monochromatic

#1E1A01 #1E1A01 #1E1A01 #574E03 #928305

Accessibility & contrast

On white

17.66

#1C1901 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#1C1901 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1901

17.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1901	#FFFFFF	#000000	##FFFFFF
##1C1901	1.00	17.66	1.19	17.66
#FFFFFF	17.66	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1800

Deuteranopia (green-blind)

#1D1902

Tritanopia (blue-blind)

#1F1614

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #1c1901;
/* rgb */ color: rgb(28, 25, 1);
/* oklch */ color: oklch(21.0% 0.042 103.1);

Tailwind

colors: {
  custom: {
    50: '#575547',
    500: '#1c1901',
    950: '#000000',
  },
}

SCSS

$custom: #1c1901;
$custom-light: #575547;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1901",
  "rgb": {
    "r": 28,
    "g": 25,
    "b": 1
  },
  "hsl": {
    "h": 53.333,
    "s": 93.103,
    "l": 5.686
  },
  "oklch": {
    "l": 0.21047,
    "c": 0.04228,
    "h": 103.1
  },
  "luminance": 0.00944
}

Semantic roles & 50–950 ramp

primary

#1C1901

secondary

#151E64

accent

#41FF29

background

#F5F4F3

surface

#E9E7E5

border

#C5C3C1

text

#030300

muted

#787877

Preview Lab

Preview with #1C1901

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

Preview Lab → · Contrast checker → · Palette generator →