#99EE63#99EE63

#99EE63 is a very light, vivid yellow-green. Relative luminance 0.688; OKLCH L 86.6% C 0.192 H 135.0°. Best body text is #000000 at 14.76:1 contrast (WCAG AA passes).

Color values

HEX	#99EE63
RGB	rgb(153, 238, 99)
HSL	hsl(97, 80%, 66%)
HSV	hsv(97, 58%, 93%)
CMYK	cmyk(35.7%, 0%, 58.4%, 6.7%)
CIE-LAB	lab(86.41, -48.99, 58.05)
CIE-LCH	lch(86.41, 75.96, 130.16°)
OKLab	oklab(86.63% -0.1359 0.1357)
OKLCH	oklch(86.63% 0.192 135)
XYZ	xyz(45.9625, 68.8202, 22.6638)
Luminance	0.6882 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Light Grass Green

#9AF764

ΔE00 1.95

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99EE63 #B863EE

analogous

#DEEE63 #99EE63 #63EE72

triadic

#99EE63 #6399EE #EE6399

tetradic

#99EE63 #63DEEE #B863EE #EE7263

square

#99EE63 #63DEEE #B863EE #EE7263

split-complementary

#99EE63 #7263EE #EE63DE

monochromatic

#58C215 #75E82C #99EE63 #BDF49A #E1FAD1

Accessibility & contrast

On white

1.42

#99EE63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.76

#99EE63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99EE63

14.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99EE63	#FFFFFF	#000000	##000000
##99EE63	1.00	1.42	14.76	14.76
#FFFFFF	1.42	1.00	21.00	21.00
#000000	14.76	21.00	1.00	1.00
##000000	14.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F6DD54

Deuteranopia (green-blind)

#EAD66D

Tritanopia (blue-blind)

#98E6D0

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #99ee63;
/* rgb */ color: rgb(153, 238, 99);
/* oklch */ color: oklch(86.6% 0.192 135.0);

Tailwind

colors: {
  custom: {
    50: '#bcf494',
    500: '#99ee63',
    950: '#000000',
  },
}

SCSS

$custom: #99ee63;
$custom-light: #bcf494;
$custom-dark: #000000;

JSON

{
  "hex": "#99ee63",
  "rgb": {
    "r": 153,
    "g": 238,
    "b": 99
  },
  "hsl": {
    "h": 96.691,
    "s": 80.347,
    "l": 66.078
  },
  "oklch": {
    "l": 0.86625,
    "c": 0.19206,
    "h": 135
  },
  "luminance": 0.68822
}

Semantic roles & 50–950 ramp

primary

#99EE63

secondary

#8A36C0

accent

#09DD8A

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#12170D

muted

#82857F

Preview Lab

Preview with #99EE63

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

Preview Lab → · Contrast checker → · Palette generator →