#556B15#556B15

#556B15 is a mid, moderate yellow-green. Relative luminance 0.125; OKLCH L 49.3% C 0.111 H 123.4°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#556B15
RGB	rgb(85, 107, 21)
HSL	hsl(75, 67%, 25%)
HSV	hsv(75, 80%, 42%)
CMYK	cmyk(20.6%, 0%, 80.4%, 58%)
CIE-LAB	lab(42.00, -20.94, 42.11)
CIE-LCH	lch(42.00, 47.03, 116.44°)
OKLab	oklab(49.29% -0.0613 0.0929)
OKLCH	oklch(49.29% 0.111 123.4)
XYZ	xyz(9.1395, 12.5008, 2.6407)
Luminance	0.1250 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556B15 #2B156B

analogous

#6B5615 #556B15 #2A6B15

triadic

#556B15 #15556B #6B1555

tetradic

#556B15 #156B56 #2B156B #6B152A

square

#556B15 #156B56 #2B156B #6B152A

split-complementary

#556B15 #152A6B #56156B

monochromatic

#141A05 #2C380B #556B15 #7E9E1F #A6D129

Accessibility & contrast

On white

6.00

#556B15 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#556B15 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556B15

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556B15	#FFFFFF	#000000	##FFFFFF
##556B15	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#726402

Deuteranopia (green-blind)

#6F631D

Tritanopia (blue-blind)

#5A655B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #556b15;
/* rgb */ color: rgb(85, 107, 21);
/* oklch */ color: oklch(49.3% 0.111 123.4);

Tailwind

colors: {
  custom: {
    50: '#88955a',
    500: '#556b15',
    950: '#000000',
  },
}

SCSS

$custom: #556b15;
$custom-light: #88955a;
$custom-dark: #000000;

JSON

{
  "hex": "#556b15",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 21
  },
  "hsl": {
    "h": 75.349,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.49289,
    "c": 0.11132,
    "h": 123.4
  },
  "luminance": 0.12501
}

Semantic roles & 50–950 ramp

primary

#556B15

secondary

#553AA2

accent

#3EEA6A

background

#F8F9F5

surface

#F0F1E9

border

#CBCBC5

text

#0C0D04

muted

#7D7E79

Preview Lab

Preview with #556B15

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

Preview Lab → · Contrast checker → · Palette generator →