#51AA24#51AA24

#51AA24 is a light, vivid yellow-green. Relative luminance 0.306; OKLCH L 65.8% C 0.185 H 137.7°. Best body text is #000000 at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#51AA24
RGB	rgb(81, 170, 36)
HSL	hsl(100, 65%, 40%)
HSV	hsv(100, 79%, 67%)
CMYK	cmyk(52.4%, 0%, 78.8%, 33.3%)
CIE-LAB	lab(62.19, -49.44, 56.14)
CIE-LCH	lch(62.19, 74.80, 131.37°)
OKLab	oklab(65.77% -0.137 0.1249)
OKLCH	oklch(65.77% 0.185 137.7)
XYZ	xyz(18.0859, 30.6248, 6.6269)
Luminance	0.3063 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AA24 #7D24AA

analogous

#94AA24 #51AA24 #24AA3A

triadic

#51AA24 #2451AA #AA2451

tetradic

#51AA24 #2494AA #7D24AA #AA3A24

square

#51AA24 #2494AA #7D24AA #AA3A24

split-complementary

#51AA24 #3A24AA #AA2494

monochromatic

#21450F #397719 #51AA24 #6CD537 #91DF69

Accessibility & contrast

On white

2.95

#51AA24 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.13

#51AA24 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AA24

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AA24	#FFFFFF	#000000	##000000
##51AA24	1.00	2.95	7.13	7.13
#FFFFFF	2.95	1.00	21.00	21.00
#000000	7.13	21.00	1.00	1.00
##000000	7.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B09B00

Deuteranopia (green-blind)

#A49433

Tritanopia (blue-blind)

#4AA491

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #51aa24;
/* rgb */ color: rgb(81, 170, 36);
/* oklch */ color: oklch(65.8% 0.185 137.7);

Tailwind

colors: {
  custom: {
    50: '#8bc46a',
    500: '#51aa24',
    950: '#000000',
  },
}

SCSS

$custom: #51aa24;
$custom-light: #8bc46a;
$custom-dark: #000000;

JSON

{
  "hex": "#51aa24",
  "rgb": {
    "r": 81,
    "g": 170,
    "b": 36
  },
  "hsl": {
    "h": 99.851,
    "s": 65.049,
    "l": 40.392
  },
  "oklch": {
    "l": 0.65766,
    "c": 0.18535,
    "h": 137.7
  },
  "luminance": 0.30626
}

Semantic roles & 50–950 ramp

primary

#51AA24

secondary

#A565C5

accent

#40E8B0

background

#F9FCF6

surface

#F1F8EC

border

#CBD1C7

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #51AA24

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

Preview Lab → · Contrast checker → · Palette generator →