#99EA51#99EA51

#99EA51 is a very light, highly saturated yellow-green. Relative luminance 0.662; OKLCH L 85.5% C 0.201 H 133.1°. Best body text is #000000 at 14.24:1 contrast (WCAG AA passes).

Color values

HEX	#99EA51
RGB	rgb(153, 234, 81)
HSL	hsl(92, 78%, 62%)
HSV	hsv(92, 65%, 92%)
CMYK	cmyk(34.6%, 0%, 65.4%, 8.2%)
CIE-LAB	lab(85.10, -48.87, 64.06)
CIE-LCH	lch(85.10, 80.57, 127.34°)
OKLab	oklab(85.51% -0.1369 0.1465)
OKLCH	oklch(85.51% 0.201 133.1)
XYZ	xyz(44.0442, 66.2102, 18.2422)
Luminance	0.6621 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99EA51 #A251EA

analogous

#E5EA51 #99EA51 #51EA56

triadic

#99EA51 #5199EA #EA5199

tetradic

#99EA51 #51E5EA #A251EA #EA5651

square

#99EA51 #51E5EA #A251EA #EA5651

split-complementary

#99EA51 #5651EA #EA51E5

monochromatic

#5CAC15 #79E21B #99EA51 #B9F188 #D9F7BE

Accessibility & contrast

On white

1.47

#99EA51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.24

#99EA51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99EA51

14.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99EA51	#FFFFFF	#000000	##000000
##99EA51	1.00	1.47	14.24	14.24
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.24	21.00	1.00	1.00
##000000	14.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F3D93C

Deuteranopia (green-blind)

#E8D25E

Tritanopia (blue-blind)

#9AE1CB

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #99ea51;
/* rgb */ color: rgb(153, 234, 81);
/* oklch */ color: oklch(85.5% 0.201 133.1);

Tailwind

colors: {
  custom: {
    50: '#bcf189',
    500: '#99ea51',
    950: '#000000',
  },
}

SCSS

$custom: #99ea51;
$custom-light: #bcf189;
$custom-dark: #000000;

JSON

{
  "hex": "#99ea51",
  "rgb": {
    "r": 153,
    "g": 234,
    "b": 81
  },
  "hsl": {
    "h": 91.765,
    "s": 78.462,
    "l": 61.765
  },
  "oklch": {
    "l": 0.85507,
    "c": 0.20052,
    "h": 133.1
  },
  "luminance": 0.66212
}

Semantic roles & 50–950 ramp

primary

#99EA51

secondary

#7332AD

accent

#0BDB79

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#12170C

muted

#82857F

Preview Lab

Preview with #99EA51

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

Preview Lab → · Contrast checker → · Palette generator →