#557B1B#557B1B

#557B1B is a mid, vivid yellow-green. Relative luminance 0.162; OKLCH L 53.5% C 0.129 H 129.2°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#557B1B
RGB	rgb(85, 123, 27)
HSL	hsl(84, 64%, 29%)
HSV	hsv(84, 78%, 48%)
CMYK	cmyk(30.9%, 0%, 78%, 51.8%)
CIE-LAB	lab(47.20, -28.57, 44.91)
CIE-LCH	lch(47.20, 53.23, 122.46°)
OKLab	oklab(53.52% -0.0816 0.0999)
OKLCH	oklch(53.52% 0.129 129.2)
XYZ	xyz(11.0271, 16.1760, 3.5780)
Luminance	0.1618 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557B1B #411B7B

analogous

#7B711B #557B1B #257B1B

triadic

#557B1B #1B557B #7B1B55

tetradic

#557B1B #1B7B71 #411B7B #7B1B25

square

#557B1B #1B7B71 #411B7B #7B1B25

split-complementary

#557B1B #1B257B #711B7B

monochromatic

#111906 #324910 #557B1B #78AD26 #98D43C

Accessibility & contrast

On white

4.96

#557B1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#557B1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #557B1B

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557B1B	#FFFFFF	#000000	##FFFFFF
##557B1B	1.00	4.96	4.24	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#817205

Deuteranopia (green-blind)

#7C6F24

Tritanopia (blue-blind)

#587569

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #557b1b;
/* rgb */ color: rgb(85, 123, 27);
/* oklch */ color: oklch(53.5% 0.129 129.2);

Tailwind

colors: {
  custom: {
    50: '#89a15f',
    500: '#557b1b',
    950: '#000000',
  },
}

SCSS

$custom: #557b1b;
$custom-light: #89a15f;
$custom-dark: #000000;

JSON

{
  "hex": "#557b1b",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 27
  },
  "hsl": {
    "h": 83.75,
    "s": 64,
    "l": 29.412
  },
  "oklch": {
    "l": 0.53522,
    "c": 0.12895,
    "h": 129.2
  },
  "luminance": 0.16176
}

Semantic roles & 50–950 ramp

primary

#557B1B

secondary

#6E43AF

accent

#41E783

background

#F8F9F5

surface

#F0F2EA

border

#CBCCC6

text

#0C0F05

muted

#7D7E79

Preview Lab

Preview with #557B1B

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

Preview Lab → · Contrast checker → · Palette generator →