#99CF4B#99CF4B

#99CF4B is a light, vivid yellow-green. Relative luminance 0.519; OKLCH L 79.1% C 0.171 H 128.7°. Best body text is #000000 at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#99CF4B
RGB	rgb(153, 207, 75)
HSL	hsl(85, 58%, 55%)
HSV	hsv(85, 64%, 81%)
CMYK	cmyk(26.1%, 0%, 63.8%, 18.8%)
CIE-LAB	lab(77.22, -37.67, 58.04)
CIE-LCH	lch(77.22, 69.19, 122.99°)
OKLab	oklab(79.08% -0.1067 0.1331)
OKLCH	oklch(79.08% 0.171 128.7)
XYZ	xyz(36.7196, 51.9051, 14.7393)
Luminance	0.5191 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99CF4B #814BCF

analogous

#CFC34B #99CF4B #57CF4B

triadic

#99CF4B #4B99CF #CF4B99

tetradic

#99CF4B #4BCFC3 #814BCF #CF4B57

square

#99CF4B #4BCFC3 #814BCF #CF4B57

split-complementary

#99CF4B #4B57CF #C34BCF

monochromatic

#587E22 #7AAE2E #99CF4B #B4DC7B #D0E9AC

Accessibility & contrast

On white

1.85

#99CF4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.38

#99CF4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99CF4B

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99CF4B	#FFFFFF	#000000	##000000
##99CF4B	1.00	1.85	11.38	11.38
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.38	21.00	1.00	1.00
##000000	11.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C13A

Deuteranopia (green-blind)

#D1BE55

Tritanopia (blue-blind)

#9DC6B4

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #99cf4b;
/* rgb */ color: rgb(153, 207, 75);
/* oklch */ color: oklch(79.1% 0.171 128.7);

Tailwind

colors: {
  custom: {
    50: '#bade83',
    500: '#99cf4b',
    950: '#000000',
  },
}

SCSS

$custom: #99cf4b;
$custom-light: #bade83;
$custom-dark: #000000;

JSON

{
  "hex": "#99cf4b",
  "rgb": {
    "r": 153,
    "g": 207,
    "b": 75
  },
  "hsl": {
    "h": 84.545,
    "s": 57.895,
    "l": 55.294
  },
  "oklch": {
    "l": 0.79083,
    "c": 0.17058,
    "h": 128.7
  },
  "luminance": 0.51906
}

Semantic roles & 50–950 ramp

primary

#99CF4B

secondary

#583986

accent

#47E186

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#12150B

muted

#82847E

Preview Lab

Preview with #99CF4B

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

Preview Lab → · Contrast checker → · Palette generator →