#99D451#99D451

#99D451 is a light, vivid yellow-green. Relative luminance 0.545; OKLCH L 80.3% C 0.172 H 130.1°. Best body text is #000000 at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#99D451
RGB	rgb(153, 212, 81)
HSL	hsl(87, 60%, 57%)
HSV	hsv(87, 62%, 83%)
CMYK	cmyk(27.8%, 0%, 61.8%, 16.9%)
CIE-LAB	lab(78.72, -39.42, 57.16)
CIE-LCH	lch(78.72, 69.44, 124.59°)
OKLab	oklab(80.32% -0.111 0.132)
OKLCH	oklch(80.32% 0.172 130.1)
XYZ	xyz(38.1653, 54.4523, 16.2825)
Luminance	0.5445 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99D451 #8C51D4

analogous

#D4CE51 #99D451 #57D451

triadic

#99D451 #5199D4 #D45199

tetradic

#99D451 #51D4CE #8C51D4 #D45157

square

#99D451 #51D4CE #8C51D4 #D45157

split-complementary

#99D451 #5157D4 #CE51D4

monochromatic

#5A8922 #7BBA2E #99D451 #B6E082 #D3ECB3

Accessibility & contrast

On white

1.77

#99D451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.89

#99D451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99D451

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99D451	#FFFFFF	#000000	##000000
##99D451	1.00	1.77	11.89	11.89
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.89	21.00	1.00	1.00
##000000	11.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC641

Deuteranopia (green-blind)

#D5C15B

Tritanopia (blue-blind)

#9CCBB8

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #99d451;
/* rgb */ color: rgb(153, 212, 81);
/* oklch */ color: oklch(80.3% 0.172 130.1);

Tailwind

colors: {
  custom: {
    50: '#bae187',
    500: '#99d451',
    950: '#000000',
  },
}

SCSS

$custom: #99d451;
$custom-light: #bae187;
$custom-dark: #000000;

JSON

{
  "hex": "#99d451",
  "rgb": {
    "r": 153,
    "g": 212,
    "b": 81
  },
  "hsl": {
    "h": 87.023,
    "s": 60.369,
    "l": 57.451
  },
  "oklch": {
    "l": 0.80316,
    "c": 0.17243,
    "h": 130.1
  },
  "luminance": 0.54453
}

Semantic roles & 50–950 ramp

primary

#99D451

secondary

#603A8F

accent

#44E48C

background

#FDFEFC

surface

#F9FCF3

border

#D2D5CD

text

#12150C

muted

#82847F

Preview Lab

Preview with #99D451

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

Preview Lab → · Contrast checker → · Palette generator →