#51F97B#51F97B

#51F97B is a very light, highly saturated green. Relative luminance 0.709; OKLCH L 86.9% C 0.218 H 148.0°. Best body text is #000000 at 15.19:1 contrast (WCAG AA passes).

Color values

HEX	#51F97B
RGB	rgb(81, 249, 123)
HSL	hsl(135, 93%, 65%)
HSV	hsv(135, 67%, 98%)
CMYK	cmyk(67.5%, 0%, 50.6%, 2.4%)
CIE-LAB	lab(87.45, -68.60, 47.83)
CIE-LCH	lch(87.45, 83.62, 145.12°)
OKLab	oklab(86.88% -0.1849 0.1155)
OKLCH	oklch(86.88% 0.218 148)
XYZ	xyz(40.8411, 70.9263, 30.2728)
Luminance	0.7093 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51F97B #F951CF

analogous

#7BF951 #51F97B #51F9CF

triadic

#51F97B #7B51F9 #F97B51

tetradic

#51F97B #517BF9 #F951CF #F9CF51

square

#51F97B #517BF9 #F951CF #F9CF51

split-complementary

#51F97B #CF51F9 #F9517B

monochromatic

#07C937 #16F74E #51F97B #8CFBA8 #C7FDD5

Accessibility & contrast

On white

1.38

#51F97B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.19

#51F97B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51F97B

15.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51F97B	#FFFFFF	#000000	##000000
##51F97B	1.00	1.38	15.19	15.19
#FFFFFF	1.38	1.00	21.00	21.00
#000000	15.19	21.00	1.00	1.00
##000000	15.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE470

Deuteranopia (green-blind)

#E7D684

Tritanopia (blue-blind)

#00F4DC

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #51f97b;
/* rgb */ color: rgb(81, 249, 123);
/* oklch */ color: oklch(86.9% 0.218 148.0);

Tailwind

colors: {
  custom: {
    50: '#95fca3',
    500: '#51f97b',
    950: '#000000',
  },
}

SCSS

$custom: #51f97b;
$custom-light: #95fca3;
$custom-dark: #000000;

JSON

{
  "hex": "#51f97b",
  "rgb": {
    "r": 81,
    "g": 249,
    "b": 123
  },
  "hsl": {
    "h": 135,
    "s": 93.333,
    "l": 64.706
  },
  "oklch": {
    "l": 0.86875,
    "c": 0.21797,
    "h": 148
  },
  "luminance": 0.70931
}

Semantic roles & 50–950 ramp

primary

#51F97B

secondary

#C5299E

accent

#00ACE6

background

#FCFFFC

surface

#F5FFF6

border

#CFD7D0

text

#0F180F

muted

#808680

Preview Lab

Preview with #51F97B

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

Preview Lab → · Contrast checker → · Palette generator →