#1D400B#1D400B

#1D400B is a dark, moderate yellow-green. Relative luminance 0.040; OKLCH L 33.3% C 0.089 H 137.2°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#1D400B
RGB	rgb(29, 64, 11)
HSL	hsl(100, 71%, 15%)
HSV	hsv(100, 83%, 25%)
CMYK	cmyk(54.7%, 0%, 82.8%, 74.9%)
CIE-LAB	lab(23.51, -23.61, 26.91)
CIE-LCH	lch(23.51, 35.80, 131.27°)
OKLab	oklab(33.28% -0.0655 0.0606)
OKLCH	oklch(33.28% 0.089 137.2)
XYZ	xyz(2.4004, 3.9520, 0.9529)
Luminance	0.0395 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 2.33

Hunter Green (survey)

#0B4008

ΔE00 2.63

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D400B #2E0B40

analogous

#38400B #1D400B #0B4014

triadic

#1D400B #0B1D40 #400B1D

tetradic

#1D400B #0B3840 #2E0B40 #40140B

square

#1D400B #0B3840 #2E0B40 #40140B

split-complementary

#1D400B #140B40 #400B38

monochromatic

#0C1A04 #0C1A04 #1D400B #357414 #4CA81D

Accessibility & contrast

On white

11.73

#1D400B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1D400B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D400B

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D400B	#FFFFFF	#000000	##FFFFFF
##1D400B	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423A03

Deuteranopia (green-blind)

#3E3710

Tritanopia (blue-blind)

#1B3D36

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d400b;
/* rgb */ color: rgb(29, 64, 11);
/* oklch */ color: oklch(33.3% 0.089 137.2);

Tailwind

colors: {
  custom: {
    50: '#5d754e',
    500: '#1d400b',
    950: '#000000',
  },
}

SCSS

$custom: #1d400b;
$custom-light: #5d754e;
$custom-dark: #000000;

JSON

{
  "hex": "#1d400b",
  "rgb": {
    "r": 29,
    "g": 64,
    "b": 11
  },
  "hsl": {
    "h": 99.623,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.33275,
    "c": 0.08924,
    "h": 137.2
  },
  "luminance": 0.03952
}

Semantic roles & 50–950 ramp

primary

#1D400B

secondary

#612A7D

accent

#3AEDB1

background

#F5F7F4

surface

#E9EDE7

border

#C5C8C3

text

#040802

muted

#797B78

Preview Lab

Preview with #1D400B

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

Preview Lab → · Contrast checker → · Palette generator →