#211B01#211B01

#211B01 is a very dark, muted yellow. Relative luminance 0.011; OKLCH L 22.3% C 0.044 H 97.1°. Best body text is #FFFFFF at 17.19:1 contrast (WCAG AA passes).

Color values

HEX	#211B01
RGB	rgb(33, 27, 1)
HSL	hsl(49, 94%, 7%)
HSV	hsv(49, 97%, 13%)
CMYK	cmyk(0%, 18.2%, 97%, 87.1%)
CIE-LAB	lab(9.87, -1.06, 14.32)
CIE-LCH	lch(9.87, 14.36, 94.23°)
OKLab	oklab(22.27% -0.0055 0.0438)
OKLCH	oklch(22.27% 0.044 97.1)
XYZ	xyz(1.0247, 1.1094, 0.1889)
Luminance	0.0111 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211B01 #010721

analogous

#210B01 #211B01 #172101

triadic

#211B01 #01211B #1B0121

tetradic

#211B01 #01210B #010721 #210117

square

#211B01 #01210B #010721 #210117

split-complementary

#211B01 #011721 #0B0121

monochromatic

#1E1801 #1E1801 #211B01 #5C4C03 #987C05

Accessibility & contrast

On white

17.19

#211B01 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#211B01 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211B01

17.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211B01	#FFFFFF	#000000	##FFFFFF
##211B01	1.00	17.19	1.22	17.19
#FFFFFF	17.19	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F1A00

Deuteranopia (green-blind)

#211C02

Tritanopia (blue-blind)

#251815

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #211b01;
/* rgb */ color: rgb(33, 27, 1);
/* oklch */ color: oklch(22.3% 0.044 97.1);

Tailwind

colors: {
  custom: {
    50: '#5c5747',
    500: '#211b01',
    950: '#000000',
  },
}

SCSS

$custom: #211b01;
$custom-light: #5c5747;
$custom-dark: #000000;

JSON

{
  "hex": "#211b01",
  "rgb": {
    "r": 33,
    "g": 27,
    "b": 1
  },
  "hsl": {
    "h": 48.75,
    "s": 94.118,
    "l": 6.667
  },
  "oklch": {
    "l": 0.22269,
    "c": 0.04417,
    "h": 97.1
  },
  "luminance": 0.01109
}

Semantic roles & 50–950 ramp

primary

#211B01

secondary

#152568

accent

#51FF29

background

#F5F5F3

surface

#E9E9E5

border

#C5C5C1

text

#040300

muted

#797877

Preview Lab

Preview with #211B01

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

Preview Lab → · Contrast checker → · Palette generator →