#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
RGBrgb(85, 123, 27)
HSLhsl(84, 64%, 29%)
HSVhsv(84, 78%, 48%)
CMYKcmyk(30.9%, 0%, 78%, 51.8%)
CIE-LABlab(47.20, -28.57, 44.91)
CIE-LCHlch(47.20, 53.23, 122.46°)
OKLaboklab(53.52% -0.0816 0.0999)
OKLCHoklch(53.52% 0.129 129.2)
XYZxyz(11.0271, 16.1760, 3.5780)
Luminance0.1618 (WCAG relative)
Temperaturewarm
Familyyellow-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
##557B1B1.004.964.244.96
#FFFFFF4.961.0021.001.00
#0000004.2421.001.0021.00
##FFFFFF4.961.0021.001.00

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 →

#557B1B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva