#99CA39#99CA39

#99CA39 is a light, vivid yellow-green. Relative luminance 0.493; OKLCH L 77.8% C 0.177 H 126.6°. Best body text is #000000 at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#99CA39
RGB	rgb(153, 202, 57)
HSL	hsl(80, 58%, 51%)
HSV	hsv(80, 72%, 79%)
CMYK	cmyk(24.3%, 0%, 71.8%, 20.8%)
CIE-LAB	lab(75.64, -36.64, 63.35)
CIE-LCH	lch(75.64, 73.18, 120.05°)
OKLab	oklab(77.76% -0.1054 0.1417)
OKLCH	oklch(77.76% 0.177 126.6)
XYZ	xyz(34.9960, 49.3082, 11.5438)
Luminance	0.4931 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99CA39 #6A39CA

analogous

#CAB239 #99CA39 #50CA39

triadic

#99CA39 #3999CA #CA3999

tetradic

#99CA39 #39CAB2 #6A39CA #CA3950

square

#99CA39 #39CAB2 #6A39CA #CA3950

split-complementary

#99CA39 #3950CA #B239CA

monochromatic

#516C1D #759C2A #99CA39 #B2D769 #CBE49A

Accessibility & contrast

On white

1.93

#99CA39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.86

#99CA39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99CA39

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99CA39	#FFFFFF	#000000	##000000
##99CA39	1.00	1.93	10.86	10.86
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.86	21.00	1.00	1.00
##000000	10.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BC1F

Deuteranopia (green-blind)

#CEBA46

Tritanopia (blue-blind)

#9FC1AE

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #99ca39;
/* rgb */ color: rgb(153, 202, 57);
/* oklch */ color: oklch(77.8% 0.177 126.6);

Tailwind

colors: {
  custom: {
    50: '#bbda79',
    500: '#99ca39',
    950: '#000000',
  },
}

SCSS

$custom: #99ca39;
$custom-light: #bbda79;
$custom-dark: #000000;

JSON

{
  "hex": "#99ca39",
  "rgb": {
    "r": 153,
    "g": 202,
    "b": 57
  },
  "hsl": {
    "h": 80.276,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.77759,
    "c": 0.17662,
    "h": 126.6
  },
  "luminance": 0.49309
}

Semantic roles & 50–950 ramp

primary

#99CA39

secondary

#A58FD0

accent

#47E17B

background

#FBFDF7

surface

#F7FAEE

border

#D0D3C9

text

#12150A

muted

#81837C

Preview Lab

Preview with #99CA39

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

Preview Lab → · Contrast checker → · Palette generator →