#28400B#28400B

#28400B is a dark, moderate yellow-green. Relative luminance 0.041; OKLCH L 34.0% C 0.082 H 131.1°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#28400B
RGB	rgb(40, 64, 11)
HSL	hsl(87, 71%, 15%)
HSV	hsv(87, 83%, 25%)
CMYK	cmyk(37.5%, 0%, 82.8%, 74.9%)
CIE-LAB	lab(24.14, -19.15, 27.74)
CIE-LCH	lch(24.14, 33.71, 124.62°)
OKLab	oklab(33.95% -0.0542 0.0622)
OKLCH	oklch(33.95% 0.082 131.1)
XYZ	xyz(2.7688, 4.1420, 0.9701)
Luminance	0.0414 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 4.44

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28400B #230B40

analogous

#403E0B #28400B #0D400B

triadic

#28400B #0B2840 #400B28

tetradic

#28400B #0B403E #230B40 #400B0D

square

#28400B #0B403E #230B40 #400B0D

split-complementary

#28400B #0B0D40 #3E0B40

monochromatic

#101A04 #101A04 #28400B #497414 #69A81D

Accessibility & contrast

On white

11.49

#28400B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#28400B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28400B

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28400B	#FFFFFF	#000000	##FFFFFF
##28400B	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#433B03

Deuteranopia (green-blind)

#403910

Tritanopia (blue-blind)

#293D36

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #28400b;
/* rgb */ color: rgb(40, 64, 11);
/* oklch */ color: oklch(34.0% 0.082 131.1);

Tailwind

colors: {
  custom: {
    50: '#64754e',
    500: '#28400b',
    950: '#000000',
  },
}

SCSS

$custom: #28400b;
$custom-light: #64754e;
$custom-dark: #000000;

JSON

{
  "hex": "#28400b",
  "rgb": {
    "r": 40,
    "g": 64,
    "b": 11
  },
  "hsl": {
    "h": 87.17,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.33954,
    "c": 0.08248,
    "h": 131.1
  },
  "luminance": 0.04142
}

Semantic roles & 50–950 ramp

primary

#28400B

secondary

#502A7D

accent

#3AED8B

background

#F6F7F4

surface

#EBEDE7

border

#C6C8C3

text

#060802

muted

#7A7B78

Preview Lab

Preview with #28400B

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

Preview Lab → · Contrast checker → · Palette generator →