#C4EF59#C4EF59

#C4EF59 is a very light, vivid yellow-green. Relative luminance 0.742; OKLCH L 89.3% C 0.181 H 123.7°. Best body text is #000000 at 15.84:1 contrast (WCAG AA passes).

Color values

HEX	#C4EF59
RGB	rgb(196, 239, 89)
HSL	hsl(77, 82%, 64%)
HSV	hsv(77, 63%, 94%)
CMYK	cmyk(18%, 0%, 62.8%, 6.3%)
CIE-LAB	lab(89.01, -34.89, 65.78)
CIE-LCH	lch(89.01, 74.46, 117.94°)
OKLab	oklab(89.33% -0.1003 0.1505)
OKLCH	oklch(89.33% 0.181 123.7)
XYZ	xyz(55.4351, 74.1897, 20.8488)
Luminance	0.7419 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C4EF59 #8459EF

analogous

#EFCF59 #C4EF59 #79EF59

triadic

#C4EF59 #59C4EF #EF59C4

tetradic

#C4EF59 #59EFCF #8459EF #EF5979

square

#C4EF59 #59EFCF #8459EF #EF5979

split-complementary

#C4EF59 #5979EF #CF59EF

monochromatic

#8BBC12 #B0EA21 #C4EF59 #D8F491 #ECFAC9

Accessibility & contrast

On white

1.33

#C4EF59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.84

#C4EF59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C4EF59

15.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C4EF59	#FFFFFF	#000000	##000000
##C4EF59	1.00	1.33	15.84	15.84
#FFFFFF	1.33	1.00	21.00	21.00
#000000	15.84	21.00	1.00	1.00
##000000	15.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE146

Deuteranopia (green-blind)

#F6DF64

Tritanopia (blue-blind)

#CDE4D0

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #c4ef59;
/* rgb */ color: rgb(196, 239, 89);
/* oklch */ color: oklch(89.3% 0.181 123.7);

Tailwind

colors: {
  custom: {
    50: '#d9f48e',
    500: '#c4ef59',
    950: '#000000',
  },
}

SCSS

$custom: #c4ef59;
$custom-light: #d9f48e;
$custom-dark: #000000;

JSON

{
  "hex": "#c4ef59",
  "rgb": {
    "r": 196,
    "g": 239,
    "b": 89
  },
  "hsl": {
    "h": 77.2,
    "s": 82.418,
    "l": 64.314
  },
  "oklch": {
    "l": 0.89333,
    "c": 0.18083,
    "h": 123.7
  },
  "luminance": 0.7419
}

Semantic roles & 50–950 ramp

primary

#C4EF59

secondary

#5932BA

accent

#07DF45

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #C4EF59

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

Preview Lab → · Contrast checker → · Palette generator →