#55B31B#55B31B

#55B31B is a light, vivid yellow-green. Relative luminance 0.343; OKLCH L 68.2% C 0.198 H 137.1°. Best body text is #000000 at 7.85:1 contrast (WCAG AA passes).

Color values

HEX#55B31B
RGBrgb(85, 179, 27)
HSLhsl(97, 74%, 40%)
HSVhsv(97, 85%, 70%)
CMYKcmyk(52.5%, 0%, 84.9%, 29.8%)
CIE-LABlab(65.16, -52.12, 61.41)
CIE-LCHlch(65.16, 80.54, 130.32°)
OKLaboklab(68.24% -0.1449 0.1346)
OKLCHoklch(68.24% 0.198 137.1)
XYZxyz(20.0636, 34.2491, 6.5902)
Luminance0.3425 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#55B31B #791BB3
analogous
#A1B31B #55B31B #1BB32D
triadic
#55B31B #1B55B3 #B31B55
tetradic
#55B31B #1BA1B3 #791BB3 #B32D1B
square
#55B31B #1BA1B3 #791BB3 #B32D1B
split-complementary
#55B31B #2D1BB3 #B31BA1
monochromatic
#22490B #3C7E13 #55B31B #70DF2C #94E761

Accessibility & contrast

On white

2.68
#55B31B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.85
#55B31B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B31B
7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##55B31B#FFFFFF#000000##000000
##55B31B1.002.687.857.85
#FFFFFF2.681.0021.0021.00
#0000007.8521.001.001.00
##0000007.8521.001.001.00

Color blindness preview

Protanopia (red-blind)
#B9A300
Deuteranopia (green-blind)
#AD9B2F
Tritanopia (blue-blind)
#4FAC98
Achromatopsia (no color)
#9E9E9E

Design tokens & code

CSS
--color: #55b31b;
/* rgb */ color: rgb(85, 179, 27);
/* oklch */ color: oklch(68.2% 0.198 137.1);
Tailwind
colors: {
  custom: {
    50: '#8fca68',
    500: '#55b31b',
    950: '#000000',
  },
}
SCSS
$custom: #55b31b;
$custom-light: #8fca68;
$custom-dark: #000000;
JSON
{
  "hex": "#55b31b",
  "rgb": {
    "r": 85,
    "g": 179,
    "b": 27
  },
  "hsl": {
    "h": 97.105,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.68243,
    "c": 0.19774,
    "h": 137.1
  },
  "luminance": 0.34251
}

Semantic roles & 50–950 ramp

primary
#55B31B
secondary
#A25ECC
accent
#37F0AA
background
#F9FCF6
surface
#F2F8EB
border
#CCD1C6
text
#0D1307
muted
#7E827A

Preview Lab

Preview with #55B31B

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

Preview Lab → · Contrast checker → · Palette generator →

#55B31B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva