#51991A#51991A

#51991A is a mid, vivid yellow-green. Relative luminance 0.246; OKLCH L 61.2% C 0.170 H 135.5°. Best body text is #000000 at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#51991A
RGB	rgb(81, 153, 26)
HSL	hsl(94, 71%, 35%)
HSV	hsv(94, 83%, 60%)
CMYK	cmyk(47.1%, 0%, 83%, 40%)
CIE-LAB	lab(56.69, -43.29, 54.01)
CIE-LCH	lch(56.69, 69.21, 128.71°)
OKLab	oklab(61.22% -0.1211 0.1189)
OKLCH	oklch(61.22% 0.17 135.5)
XYZ	xyz(14.9707, 24.6054, 4.9376)
Luminance	0.2461 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51991A #621A99

analogous

#90991A #51991A #1A9923

triadic

#51991A #1A5199 #991A51

tetradic

#51991A #1A9099 #621A99 #99231A

square

#51991A #1A9099 #621A99 #99231A

split-complementary

#51991A #231A99 #991A90

monochromatic

#1A3008 #356511 #51991A #6DCD23 #8DE14D

Accessibility & contrast

On white

3.55

#51991A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.92

#51991A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51991A

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51991A	#FFFFFF	#000000	##000000
##51991A	1.00	3.55	5.92	5.92
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.92	21.00	1.00	1.00
##000000	5.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9F8C00

Deuteranopia (green-blind)

#95862A

Tritanopia (blue-blind)

#4E9382

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #51991a;
/* rgb */ color: rgb(81, 153, 26);
/* oklch */ color: oklch(61.2% 0.170 135.5);

Tailwind

colors: {
  custom: {
    50: '#89b763',
    500: '#51991a',
    950: '#000000',
  },
}

SCSS

$custom: #51991a;
$custom-light: #89b763;
$custom-dark: #000000;

JSON

{
  "hex": "#51991a",
  "rgb": {
    "r": 81,
    "g": 153,
    "b": 26
  },
  "hsl": {
    "h": 94.016,
    "s": 70.95,
    "l": 35.098
  },
  "oklch": {
    "l": 0.61225,
    "c": 0.16968,
    "h": 135.5
  },
  "luminance": 0.24606
}

Semantic roles & 50–950 ramp

primary

#51991A

secondary

#8F4CC3

accent

#3AEEA0

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #51991A

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

Preview Lab → · Contrast checker → · Palette generator →