#C5EC57#C5EC57

#C5EC57 is a very light, vivid yellow-green. Relative luminance 0.725; OKLCH L 88.7% C 0.178 H 122.6°. Best body text is #000000 at 15.51:1 contrast (WCAG AA passes).

Color values

HEX	#C5EC57
RGB	rgb(197, 236, 87)
HSL	hsl(76, 80%, 63%)
HSV	hsv(76, 63%, 93%)
CMYK	cmyk(16.5%, 0%, 63.1%, 7.5%)
CIE-LAB	lab(88.23, -33.27, 65.77)
CIE-LCH	lch(88.23, 73.70, 116.84°)
OKLab	oklab(88.72% -0.096 0.1502)
OKLCH	oklch(88.72% 0.178 122.6)
XYZ	xyz(54.7423, 72.5492, 20.1344)
Luminance	0.7255 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5EC57 #7E57EC

analogous

#ECC957 #C5EC57 #7AEC57

triadic

#C5EC57 #57C5EC #EC57C5

tetradic

#C5EC57 #57ECC9 #7E57EC #EC577A

square

#C5EC57 #57ECC9 #7E57EC #EC577A

split-complementary

#C5EC57 #577AEC #C957EC

monochromatic

#8AB414 #B2E620 #C5EC57 #D8F28E #EBF8C5

Accessibility & contrast

On white

1.35

#C5EC57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.51

#C5EC57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C5EC57

15.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5EC57	#FFFFFF	#000000	##000000
##C5EC57	1.00	1.35	15.51	15.51
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.51	21.00	1.00	1.00
##000000	15.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F9DE44

Deuteranopia (green-blind)

#F4DD62

Tritanopia (blue-blind)

#CEE1CD

Achromatopsia (no color)

#DDDDDD

Design tokens & code

CSS

--color: #c5ec57;
/* rgb */ color: rgb(197, 236, 87);
/* oklch */ color: oklch(88.7% 0.178 122.6);

Tailwind

colors: {
  custom: {
    50: '#daf28d',
    500: '#c5ec57',
    950: '#000000',
  },
}

SCSS

$custom: #c5ec57;
$custom-light: #daf28d;
$custom-dark: #000000;

JSON

{
  "hex": "#c5ec57",
  "rgb": {
    "r": 197,
    "g": 236,
    "b": 87
  },
  "hsl": {
    "h": 75.705,
    "s": 79.679,
    "l": 63.333
  },
  "oklch": {
    "l": 0.88715,
    "c": 0.17826,
    "h": 122.6
  },
  "luminance": 0.72549
}

Semantic roles & 50–950 ramp

primary

#C5EC57

secondary

#5533B4

accent

#0ADC41

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15160D

muted

#84857F

Preview Lab

Preview with #C5EC57

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

Preview Lab → · Contrast checker → · Palette generator →