#556D18#556D18

#556D18 is a mid, moderate yellow-green. Relative luminance 0.129; OKLCH L 49.8% C 0.112 H 124.4°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#556D18
RGB	rgb(85, 109, 24)
HSL	hsl(77, 64%, 26%)
HSV	hsv(77, 78%, 43%)
CMYK	cmyk(22%, 0%, 78%, 57.3%)
CIE-LAB	lab(42.66, -21.80, 41.65)
CIE-LCH	lch(42.66, 47.01, 117.63°)
OKLab	oklab(49.83% -0.0634 0.0925)
OKLCH	oklch(49.83% 0.112 124.4)
XYZ	xyz(9.3799, 12.9344, 2.8664)
Luminance	0.1293 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556D18 #30186D

analogous

#6D5A18 #556D18 #2A6D18

triadic

#556D18 #18556D #6D1855

tetradic

#556D18 #186D5A #30186D #6D182A

square

#556D18 #186D5A #30186D #6D182A

split-complementary

#556D18 #182A6D #5A186D

monochromatic

#141906 #2E3B0D #556D18 #7C9F23 #A3D12E

Accessibility & contrast

On white

5.85

#556D18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#556D18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556D18

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556D18	#FFFFFF	#000000	##FFFFFF
##556D18	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#736606

Deuteranopia (green-blind)

#706420

Tritanopia (blue-blind)

#59675D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #556d18;
/* rgb */ color: rgb(85, 109, 24);
/* oklch */ color: oklch(49.8% 0.112 124.4);

Tailwind

colors: {
  custom: {
    50: '#88975c',
    500: '#556d18',
    950: '#000000',
  },
}

SCSS

$custom: #556d18;
$custom-light: #88975c;
$custom-dark: #000000;

JSON

{
  "hex": "#556d18",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 24
  },
  "hsl": {
    "h": 76.941,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.49832,
    "c": 0.11214,
    "h": 124.4
  },
  "luminance": 0.12935
}

Semantic roles & 50–950 ramp

primary

#556D18

secondary

#5B3EA3

accent

#41E770

background

#F8F9F5

surface

#F0F2E9

border

#CBCCC5

text

#0C0D04

muted

#7D7E79

Preview Lab

Preview with #556D18

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

Preview Lab → · Contrast checker → · Palette generator →