#C5EC59#C5EC59

#C5EC59 is a very light, vivid yellow-green. Relative luminance 0.726; OKLCH L 88.7% C 0.177 H 122.7°. Best body text is #000000 at 15.52:1 contrast (WCAG AA passes).

Color values

HEX	#C5EC59
RGB	rgb(197, 236, 89)
HSL	hsl(76, 79%, 64%)
HSV	hsv(76, 62%, 93%)
CMYK	cmyk(16.5%, 0%, 62.3%, 7.5%)
CIE-LAB	lab(88.25, -33.13, 64.98)
CIE-LCH	lch(88.25, 72.94, 117.02°)
OKLab	oklab(88.73% -0.0955 0.1488)
OKLCH	oklch(88.73% 0.177 122.7)
XYZ	xyz(54.8251, 72.5823, 20.5707)
Luminance	0.7258 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5EC59 #8059EC

analogous

#ECC959 #C5EC59 #7BEC59

triadic

#C5EC59 #59C5EC #EC59C5

tetradic

#C5EC59 #59ECC9 #8059EC #EC597B

square

#C5EC59 #59ECC9 #8059EC #EC597B

split-complementary

#C5EC59 #597BEC #C959EC

monochromatic

#8BB615 #B2E622 #C5EC59 #D8F290 #EBF9C7

Accessibility & contrast

On white

1.35

#C5EC59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.52

#C5EC59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C5EC59

15.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5EC59	#FFFFFF	#000000	##000000
##C5EC59	1.00	1.35	15.52	15.52
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.52	21.00	1.00	1.00
##000000	15.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F9DE47

Deuteranopia (green-blind)

#F4DD64

Tritanopia (blue-blind)

#CEE1CD

Achromatopsia (no color)

#DDDDDD

Design tokens & code

CSS

--color: #c5ec59;
/* rgb */ color: rgb(197, 236, 89);
/* oklch */ color: oklch(88.7% 0.177 122.7);

Tailwind

colors: {
  custom: {
    50: '#daf28e',
    500: '#c5ec59',
    950: '#000000',
  },
}

SCSS

$custom: #c5ec59;
$custom-light: #daf28e;
$custom-dark: #000000;

JSON

{
  "hex": "#c5ec59",
  "rgb": {
    "r": 197,
    "g": 236,
    "b": 89
  },
  "hsl": {
    "h": 75.918,
    "s": 79.459,
    "l": 63.725
  },
  "oklch": {
    "l": 0.88733,
    "c": 0.17677,
    "h": 122.7
  },
  "luminance": 0.72582
}

Semantic roles & 50–950 ramp

primary

#C5EC59

secondary

#5634B5

accent

#0ADC41

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15160D

muted

#84857F

Preview Lab

Preview with #C5EC59

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

Preview Lab → · Contrast checker → · Palette generator →