#CCEF5B#CCEF5B

#CCEF5B is a very light, vivid yellow-green. Relative luminance 0.753; OKLCH L 89.9% C 0.176 H 121.4°. Best body text is #000000 at 16.07:1 contrast (WCAG AA passes).

Color values

HEX	#CCEF5B
RGB	rgb(204, 239, 91)
HSL	hsl(74, 82%, 65%)
HSV	hsv(74, 62%, 94%)
CMYK	cmyk(14.6%, 0%, 61.9%, 6.3%)
CIE-LAB	lab(89.55, -31.68, 65.70)
CIE-LCH	lch(89.55, 72.93, 115.74°)
OKLab	oklab(89.9% -0.0916 0.1504)
OKLCH	oklch(89.9% 0.176 121.4)
XYZ	xyz(57.6574, 75.3257, 21.3973)
Luminance	0.7533 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CCEF5B #7E5BEF

analogous

#EFC85B #CCEF5B #82EF5B

triadic

#CCEF5B #5BCCEF #EF5BCC

tetradic

#CCEF5B #5BEFC8 #7E5BEF #EF5B82

square

#CCEF5B #5BEFC8 #7E5BEF #EF5B82

split-complementary

#CCEF5B #5B82EF #C85BEF

monochromatic

#95BD12 #BBEA23 #CCEF5B #DDF493 #EFFACB

Accessibility & contrast

On white

1.31

#CCEF5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.07

#CCEF5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CCEF5B

16.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CCEF5B	#FFFFFF	#000000	##000000
##CCEF5B	1.00	1.31	16.07	16.07
#FFFFFF	1.31	1.00	21.00	21.00
#000000	16.07	21.00	1.00	1.00
##000000	16.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE249

Deuteranopia (green-blind)

#F8E165

Tritanopia (blue-blind)

#D6E3D0

Achromatopsia (no color)

#E1E1E1

Design tokens & code

CSS

--color: #ccef5b;
/* rgb */ color: rgb(204, 239, 91);
/* oklch */ color: oklch(89.9% 0.176 121.4);

Tailwind

colors: {
  custom: {
    50: '#def48f',
    500: '#ccef5b',
    950: '#000000',
  },
}

SCSS

$custom: #ccef5b;
$custom-light: #def48f;
$custom-dark: #000000;

JSON

{
  "hex": "#ccef5b",
  "rgb": {
    "r": 204,
    "g": 239,
    "b": 91
  },
  "hsl": {
    "h": 74.189,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.899,
    "c": 0.17613,
    "h": 121.4
  },
  "luminance": 0.75326
}

Semantic roles & 50–950 ramp

primary

#CCEF5B

secondary

#5333BC

accent

#07DF3A

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #CCEF5B

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

Preview Lab → · Contrast checker → · Palette generator →