#1F2011#1F2011

#1F2011 is a very dark, muted yellow. Relative luminance 0.014; OKLCH L 23.8% C 0.027 H 111.5°. Best body text is #FFFFFF at 16.50:1 contrast (WCAG AA passes).

Color values

HEX	#1F2011
RGB	rgb(31, 32, 17)
HSL	hsl(64, 31%, 10%)
HSV	hsv(64, 47%, 13%)
CMYK	cmyk(3.1%, 0%, 46.9%, 87.5%)
CIE-LAB	lab(11.72, -3.62, 9.75)
CIE-LCH	lch(11.72, 10.40, 110.38°)
OKLab	oklab(23.77% -0.0098 0.0248)
OKLCH	oklch(23.77% 0.027 111.5)
XYZ	xyz(1.1828, 1.3648, 0.7313)
Luminance	0.0137 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2011 #121120

analogous

#201A11 #1F2011 #182011

triadic

#1F2011 #111F20 #20111F

tetradic

#1F2011 #11201A #121120 #201118

square

#1F2011 #11201A #121120 #201118

split-complementary

#1F2011 #111820 #1A1120

monochromatic

#13140B #13140B #1F2011 #464826 #6C703B

Accessibility & contrast

On white

16.50

#1F2011 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#1F2011 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2011

16.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2011	#FFFFFF	#000000	##FFFFFF
##1F2011	1.00	16.50	1.27	16.50
#FFFFFF	16.50	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#221F10

Deuteranopia (green-blind)

#221F12

Tritanopia (blue-blind)

#211E1C

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #1f2011;
/* rgb */ color: rgb(31, 32, 17);
/* oklch */ color: oklch(23.8% 0.027 111.5);

Tailwind

colors: {
  custom: {
    50: '#5a5b4f',
    500: '#1f2011',
    950: '#000000',
  },
}

SCSS

$custom: #1f2011;
$custom-light: #5a5b4f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2011",
  "rgb": {
    "r": 31,
    "g": 32,
    "b": 17
  },
  "hsl": {
    "h": 64,
    "s": 30.612,
    "l": 9.608
  },
  "oklch": {
    "l": 0.2377,
    "c": 0.02666,
    "h": 111.5
  },
  "luminance": 0.01365
}

Semantic roles & 50–950 ramp

primary

#1F2011

secondary

#393755

accent

#61C768

background

#F5F5F4

surface

#E9E9E7

border

#C5C5C3

text

#040402

muted

#797978

Preview Lab

Preview with #1F2011

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

Preview Lab → · Contrast checker → · Palette generator →