#C1EF59#C1EF59

#C1EF59 is a very light, vivid yellow-green. Relative luminance 0.738; OKLCH L 89.1% C 0.182 H 124.5°. Best body text is #000000 at 15.76:1 contrast (WCAG AA passes).

Color values

HEX	#C1EF59
RGB	rgb(193, 239, 89)
HSL	hsl(78, 82%, 64%)
HSV	hsv(78, 63%, 94%)
CMYK	cmyk(19.2%, 0%, 62.8%, 6.3%)
CIE-LAB	lab(88.82, -36.02, 65.52)
CIE-LCH	lch(88.82, 74.77, 118.80°)
OKLab	oklab(89.13% -0.1033 0.15)
OKLCH	oklch(89.13% 0.182 124.5)
XYZ	xyz(54.6623, 73.7912, 20.8126)
Luminance	0.7379 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C1EF59 #8759EF

analogous

#EFD259 #C1EF59 #76EF59

triadic

#C1EF59 #59C1EF #EF59C1

tetradic

#C1EF59 #59EFD2 #8759EF #EF5976

square

#C1EF59 #59EFD2 #8759EF #EF5976

split-complementary

#C1EF59 #5976EF #D259EF

monochromatic

#88BC12 #ACEA21 #C1EF59 #D6F491 #EBFAC9

Accessibility & contrast

On white

1.33

#C1EF59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.76

#C1EF59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C1EF59

15.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C1EF59	#FFFFFF	#000000	##000000
##C1EF59	1.00	1.33	15.76	15.76
#FFFFFF	1.33	1.00	21.00	21.00
#000000	15.76	21.00	1.00	1.00
##000000	15.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE146

Deuteranopia (green-blind)

#F5DF64

Tritanopia (blue-blind)

#C9E4D0

Achromatopsia (no color)

#DFDFDF

Design tokens & code

CSS

--color: #c1ef59;
/* rgb */ color: rgb(193, 239, 89);
/* oklch */ color: oklch(89.1% 0.182 124.5);

Tailwind

colors: {
  custom: {
    50: '#d7f48e',
    500: '#c1ef59',
    950: '#000000',
  },
}

SCSS

$custom: #c1ef59;
$custom-light: #d7f48e;
$custom-dark: #000000;

JSON

{
  "hex": "#c1ef59",
  "rgb": {
    "r": 193,
    "g": 239,
    "b": 89
  },
  "hsl": {
    "h": 78.4,
    "s": 82.418,
    "l": 64.314
  },
  "oklch": {
    "l": 0.89132,
    "c": 0.1821,
    "h": 124.5
  },
  "luminance": 0.73792
}

Semantic roles & 50–950 ramp

primary

#C1EF59

secondary

#5C32BA

accent

#07DF49

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #C1EF59

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

Preview Lab → · Contrast checker → · Palette generator →