#51901E#51901E

#51901E is a mid, vivid yellow-green. Relative luminance 0.218; OKLCH L 58.9% C 0.157 H 134.7°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#51901E
RGB	rgb(81, 144, 30)
HSL	hsl(93, 66%, 34%)
HSV	hsv(93, 79%, 56%)
CMYK	cmyk(43.8%, 0%, 79.2%, 43.5%)
CIE-LAB	lab(53.80, -39.35, 50.11)
CIE-LCH	lch(53.80, 63.71, 128.14°)
OKLab	oklab(58.86% -0.1102 0.1113)
OKLCH	oklch(58.86% 0.157 134.7)
XYZ	xyz(13.6007, 21.7888, 4.7171)
Luminance	0.2179 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51901E #5D1E90

analogous

#8A901E #51901E #1E9024

triadic

#51901E #1E5190 #901E51

tetradic

#51901E #1E8A90 #5D1E90 #90241E

square

#51901E #1E8A90 #5D1E90 #90241E

split-complementary

#51901E #241E90 #901E8A

monochromatic

#182B09 #355D13 #51901E #6DC329 #8DDA4E

Accessibility & contrast

On white

3.92

#51901E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#51901E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51901E

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51901E	#FFFFFF	#000000	##000000
##51901E	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#968400

Deuteranopia (green-blind)

#8D7F2A

Tritanopia (blue-blind)

#508A7B

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #51901e;
/* rgb */ color: rgb(81, 144, 30);
/* oklch */ color: oklch(58.9% 0.157 134.7);

Tailwind

colors: {
  custom: {
    50: '#88b164',
    500: '#51901e',
    950: '#000000',
  },
}

SCSS

$custom: #51901e;
$custom-light: #88b164;
$custom-dark: #000000;

JSON

{
  "hex": "#51901e",
  "rgb": {
    "r": 81,
    "g": 144,
    "b": 30
  },
  "hsl": {
    "h": 93.158,
    "s": 65.517,
    "l": 34.118
  },
  "oklch": {
    "l": 0.58861,
    "c": 0.15666,
    "h": 134.7
  },
  "luminance": 0.2179
}

Semantic roles & 50–950 ramp

primary

#51901E

secondary

#8B4DBD

accent

#3FE89D

background

#F8FAF6

surface

#F0F5EB

border

#CBCFC6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #51901E

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

Preview Lab → · Contrast checker → · Palette generator →