#99EA57#99EA57

#99EA57 is a very light, vivid yellow-green. Relative luminance 0.663; OKLCH L 85.6% C 0.196 H 133.5°. Best body text is #000000 at 14.26:1 contrast (WCAG AA passes).

Color values

HEX	#99EA57
RGB	rgb(153, 234, 87)
HSL	hsl(93, 78%, 63%)
HSV	hsv(93, 63%, 92%)
CMYK	cmyk(34.6%, 0%, 62.8%, 8.2%)
CIE-LAB	lab(85.15, -48.39, 61.70)
CIE-LCH	lch(85.15, 78.42, 128.11°)
OKLab	oklab(85.56% -0.1351 0.1423)
OKLCH	oklch(85.56% 0.196 133.5)
XYZ	xyz(44.2792, 66.3042, 19.4799)
Luminance	0.6631 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99EA57 #A857EA

analogous

#E3EA57 #99EA57 #57EA5E

triadic

#99EA57 #5799EA #EA5799

tetradic

#99EA57 #57E3EA #A857EA #EA5E57

square

#99EA57 #57E3EA #A857EA #EA5E57

split-complementary

#99EA57 #5E57EA #EA57E3

monochromatic

#5BB116 #78E321 #99EA57 #BAF18D #DBF8C4

Accessibility & contrast

On white

1.47

#99EA57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.26

#99EA57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99EA57

14.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99EA57	#FFFFFF	#000000	##000000
##99EA57	1.00	1.47	14.26	14.26
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.26	21.00	1.00	1.00
##000000	14.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F3D945

Deuteranopia (green-blind)

#E8D263

Tritanopia (blue-blind)

#99E1CB

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #99ea57;
/* rgb */ color: rgb(153, 234, 87);
/* oklch */ color: oklch(85.6% 0.196 133.5);

Tailwind

colors: {
  custom: {
    50: '#bcf18c',
    500: '#99ea57',
    950: '#000000',
  },
}

SCSS

$custom: #99ea57;
$custom-light: #bcf18c;
$custom-dark: #000000;

JSON

{
  "hex": "#99ea57",
  "rgb": {
    "r": 153,
    "g": 234,
    "b": 87
  },
  "hsl": {
    "h": 93.061,
    "s": 77.778,
    "l": 62.941
  },
  "oklch": {
    "l": 0.85561,
    "c": 0.19621,
    "h": 133.5
  },
  "luminance": 0.66306
}

Semantic roles & 50–950 ramp

primary

#99EA57

secondary

#7934B1

accent

#0BDA7D

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#12170C

muted

#82857F

Preview Lab

Preview with #99EA57

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

Preview Lab → · Contrast checker → · Palette generator →