#51991E#51991E

#51991E is a mid, vivid yellow-green. Relative luminance 0.246; OKLCH L 61.2% C 0.168 H 135.8°. Best body text is #000000 at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#51991E
RGB	rgb(81, 153, 30)
HSL	hsl(95, 67%, 36%)
HSV	hsv(95, 80%, 60%)
CMYK	cmyk(47.1%, 0%, 80.4%, 40%)
CIE-LAB	lab(56.71, -43.08, 52.84)
CIE-LCH	lch(56.71, 68.18, 129.19°)
OKLab	oklab(61.25% -0.1203 0.1171)
OKLCH	oklch(61.25% 0.168 135.8)
XYZ	xyz(15.0185, 24.6246, 5.1897)
Luminance	0.2463 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51991E #661E99

analogous

#8E991E #51991E #1E9928

triadic

#51991E #1E5199 #991E51

tetradic

#51991E #1E8E99 #661E99 #99281E

square

#51991E #1E8E99 #661E99 #99281E

split-complementary

#51991E #281E99 #991E8E

monochromatic

#1B330A #366614 #51991E #6CCC28 #8DDD54

Accessibility & contrast

On white

3.54

#51991E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.93

#51991E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51991E

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51991E	#FFFFFF	#000000	##000000
##51991E	1.00	3.54	5.93	5.93
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.93	21.00	1.00	1.00
##000000	5.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9F8C00

Deuteranopia (green-blind)

#95862C

Tritanopia (blue-blind)

#4E9382

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #51991e;
/* rgb */ color: rgb(81, 153, 30);
/* oklch */ color: oklch(61.2% 0.168 135.8);

Tailwind

colors: {
  custom: {
    50: '#89b765',
    500: '#51991e',
    950: '#000000',
  },
}

SCSS

$custom: #51991e;
$custom-light: #89b765;
$custom-dark: #000000;

JSON

{
  "hex": "#51991e",
  "rgb": {
    "r": 81,
    "g": 153,
    "b": 30
  },
  "hsl": {
    "h": 95.122,
    "s": 67.213,
    "l": 35.882
  },
  "oklch": {
    "l": 0.61246,
    "c": 0.16783,
    "h": 135.8
  },
  "luminance": 0.24626
}

Semantic roles & 50–950 ramp

primary

#51991E

secondary

#9352C1

accent

#3EEAA3

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #51991E

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

Preview Lab → · Contrast checker → · Palette generator →