#CFF251#CFF251

#CFF251 is a very light, vivid yellow-green. Relative luminance 0.774; OKLCH L 90.7% C 0.186 H 120.8°. Best body text is #000000 at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#CFF251
RGB	rgb(207, 242, 81)
HSL	hsl(73, 86%, 63%)
HSV	hsv(73, 67%, 95%)
CMYK	cmyk(14.5%, 0%, 66.5%, 5.1%)
CIE-LAB	lab(90.49, -32.55, 70.66)
CIE-LCH	lch(90.49, 77.80, 114.74°)
OKLab	oklab(90.69% -0.0952 0.1595)
OKLCH	oklch(90.69% 0.186 120.8)
XYZ	xyz(58.9703, 77.3638, 19.6091)
Luminance	0.7736 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CFF251 #7451F2

analogous

#F2C451 #CFF251 #7FF251

triadic

#CFF251 #51CFF2 #F251CF

tetradic

#CFF251 #51F2C4 #7451F2 #F2517F

square

#CFF251 #51F2C4 #7451F2 #F2517F

split-complementary

#CFF251 #517FF2 #C451F2

monochromatic

#95BB0E #BFEE18 #CFF251 #DFF68A #EEFBC3

Accessibility & contrast

On white

1.27

#CFF251 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.47

#CFF251 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CFF251

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CFF251	#FFFFFF	#000000	##000000
##CFF251	1.00	1.27	16.47	16.47
#FFFFFF	1.27	1.00	21.00	21.00
#000000	16.47	21.00	1.00	1.00
##000000	16.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE439

Deuteranopia (green-blind)

#FCE45D

Tritanopia (blue-blind)

#DAE6D2

Achromatopsia (no color)

#E4E4E4

Design tokens & code

CSS

--color: #cff251;
/* rgb */ color: rgb(207, 242, 81);
/* oklch */ color: oklch(90.7% 0.186 120.8);

Tailwind

colors: {
  custom: {
    50: '#e1f68a',
    500: '#cff251',
    950: '#000000',
  },
}

SCSS

$custom: #cff251;
$custom-light: #e1f68a;
$custom-dark: #000000;

JSON

{
  "hex": "#cff251",
  "rgb": {
    "r": 207,
    "g": 242,
    "b": 81
  },
  "hsl": {
    "h": 73.043,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.90686,
    "c": 0.18569,
    "h": 120.8
  },
  "luminance": 0.77364
}

Semantic roles & 50–950 ramp

primary

#CFF251

secondary

#4C2EB9

accent

#03E334

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#16170C

muted

#84857F

Preview Lab

Preview with #CFF251

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

Preview Lab → · Contrast checker → · Palette generator →