#556A18#556A18

#556A18 is a mid, moderate yellow-green. Relative luminance 0.123; OKLCH L 49.0% C 0.108 H 123.1°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#556A18
RGB	rgb(85, 106, 24)
HSL	hsl(75, 63%, 25%)
HSV	hsv(75, 77%, 42%)
CMYK	cmyk(19.8%, 0%, 77.4%, 58.4%)
CIE-LAB	lab(41.70, -20.25, 40.72)
CIE-LCH	lch(41.70, 45.47, 116.44°)
OKLab	oklab(49.05% -0.0591 0.0905)
OKLCH	oklch(49.05% 0.108 123.1)
XYZ	xyz(9.0653, 12.3053, 2.7615)
Luminance	0.1231 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556A18 #2D186A

analogous

#6A5618 #556A18 #2C6A18

triadic

#556A18 #18556A #6A1855

tetradic

#556A18 #186A56 #2D186A #6A182C

square

#556A18 #186A56 #2D186A #6A182C

split-complementary

#556A18 #182C6A #56186A

monochromatic

#141906 #2D380D #556A18 #7D9C23 #A5CE2F

Accessibility & contrast

On white

6.07

#556A18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#556A18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556A18

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556A18	#FFFFFF	#000000	##FFFFFF
##556A18	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#716308

Deuteranopia (green-blind)

#6E621F

Tritanopia (blue-blind)

#5A645A

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #556a18;
/* rgb */ color: rgb(85, 106, 24);
/* oklch */ color: oklch(49.0% 0.108 123.1);

Tailwind

colors: {
  custom: {
    50: '#88945c',
    500: '#556a18',
    950: '#000000',
  },
}

SCSS

$custom: #556a18;
$custom-light: #88945c;
$custom-dark: #000000;

JSON

{
  "hex": "#556a18",
  "rgb": {
    "r": 85,
    "g": 106,
    "b": 24
  },
  "hsl": {
    "h": 75.366,
    "s": 63.077,
    "l": 25.49
  },
  "oklch": {
    "l": 0.4905,
    "c": 0.10813,
    "h": 123.1
  },
  "luminance": 0.12305
}

Semantic roles & 50–950 ramp

primary

#556A18

secondary

#573EA0

accent

#42E66C

background

#F8F9F5

surface

#F0F1E9

border

#CBCBC5

text

#0C0D04

muted

#7D7E79

Preview Lab

Preview with #556A18

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

Preview Lab → · Contrast checker → · Palette generator →