#CEFF63#CEFF63

#CEFF63 is a very light, vivid yellow-green. Relative luminance 0.855; OKLCH L 93.6% C 0.189 H 124.8°. Best body text is #000000 at 18.11:1 contrast (WCAG AA passes).

Color values

HEX	#CEFF63
RGB	rgb(206, 255, 99)
HSL	hsl(79, 100%, 69%)
HSV	hsv(79, 61%, 100%)
CMYK	cmyk(19.2%, 0%, 61.2%, 0%)
CIE-LAB	lab(94.12, -37.62, 67.44)
CIE-LCH	lch(94.12, 77.22, 119.15°)
OKLab	oklab(93.64% -0.1075 0.155)
OKLCH	oklch(93.64% 0.189 124.8)
XYZ	xyz(63.4660, 85.5421, 24.9696)
Luminance	0.8554 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CEFF63 #9463FF

analogous

#FFE263 #CEFF63 #80FF63

triadic

#CEFF63 #63CEFF #FF63CE

tetradic

#CEFF63 #63FFE2 #9463FF #FF6380

square

#CEFF63 #63FFE2 #9463FF #FF6380

split-complementary

#CEFF63 #6380FF #E263FF

monochromatic

#9FE800 #BBFF26 #CEFF63 #E1FFA0 #F4FFDD

Accessibility & contrast

On white

1.16

#CEFF63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.11

#CEFF63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CEFF63

18.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CEFF63	#FFFFFF	#000000	##000000
##CEFF63	1.00	1.16	18.11	18.11
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.11	21.00	1.00	1.00
##000000	18.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF050

Deuteranopia (green-blind)

#FFEE6E

Tritanopia (blue-blind)

#D6F4DE

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ceff63;
/* rgb */ color: rgb(206, 255, 99);
/* oklch */ color: oklch(93.6% 0.189 124.8);

Tailwind

colors: {
  custom: {
    50: '#e0ff95',
    500: '#ceff63',
    950: '#000000',
  },
}

SCSS

$custom: #ceff63;
$custom-light: #e0ff95;
$custom-dark: #000000;

JSON

{
  "hex": "#ceff63",
  "rgb": {
    "r": 206,
    "g": 255,
    "b": 99
  },
  "hsl": {
    "h": 78.846,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.93639,
    "c": 0.18868,
    "h": 124.8
  },
  "luminance": 0.85543
}

Semantic roles & 50–950 ramp

primary

#CEFF63

secondary

#632CDA

accent

#00E648

background

#FEFFFC

surface

#FCFFF5

border

#D5D7CF

text

#16180E

muted

#84867F

Preview Lab

Preview with #CEFF63

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

Preview Lab → · Contrast checker → · Palette generator →