#51CA15#51CA15

#51CA15 is a light, highly saturated green. Relative luminance 0.440; OKLCH L 74.1% C 0.226 H 138.7°. Best body text is #000000 at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#51CA15
RGB	rgb(81, 202, 21)
HSL	hsl(100, 81%, 44%)
HSV	hsv(100, 90%, 79%)
CMYK	cmyk(59.9%, 0%, 89.6%, 20.8%)
CIE-LAB	lab(72.26, -61.57, 68.71)
CIE-LCH	lch(72.26, 92.26, 131.86°)
OKLab	oklab(74.06% -0.1701 0.1494)
OKLCH	oklch(74.06% 0.226 138.7)
XYZ	xyz(24.6482, 44.0423, 7.9114)
Luminance	0.4405 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CA15 #8E15CA

analogous

#ABCA15 #51CA15 #15CA33

triadic

#51CA15 #1551CA #CA1551

tetradic

#51CA15 #15ABCA #8E15CA #CA3315

square

#51CA15 #15ABCA #8E15CA #CA3315

split-complementary

#51CA15 #3315CA #CA15AB

monochromatic

#255B09 #3B930F #51CA15 #6FEA32 #96EF6A

Accessibility & contrast

On white

2.14

#51CA15 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.81

#51CA15 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CA15

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CA15	#FFFFFF	#000000	##000000
##51CA15	1.00	2.14	9.81	9.81
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.81	21.00	1.00	1.00
##000000	9.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B700

Deuteranopia (green-blind)

#C2AE32

Tritanopia (blue-blind)

#43C3AC

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #51ca15;
/* rgb */ color: rgb(81, 202, 21);
/* oklch */ color: oklch(74.1% 0.226 138.7);

Tailwind

colors: {
  custom: {
    50: '#90db6a',
    500: '#51ca15',
    950: '#000000',
  },
}

SCSS

$custom: #51ca15;
$custom-light: #90db6a;
$custom-dark: #000000;

JSON

{
  "hex": "#51ca15",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 21
  },
  "hsl": {
    "h": 100.11,
    "s": 81.166,
    "l": 43.725
  },
  "oklch": {
    "l": 0.74063,
    "c": 0.2264,
    "h": 138.7
  },
  "luminance": 0.44045
}

Semantic roles & 50–950 ramp

primary

#51CA15

secondary

#B066D5

accent

#30F8B5

background

#F9FDF6

surface

#F2FBEC

border

#CCD4C7

text

#0E1507

muted

#7E837A

Preview Lab

Preview with #51CA15

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

Preview Lab → · Contrast checker → · Palette generator →