#C5EC58#C5EC58

#C5EC58 is a very light, vivid yellow-green. Relative luminance 0.726; 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	#C5EC58
RGB	rgb(197, 236, 88)
HSL	hsl(76, 80%, 64%)
HSV	hsv(76, 63%, 93%)
CMYK	cmyk(16.5%, 0%, 62.7%, 7.5%)
CIE-LAB	lab(88.24, -33.20, 65.37)
CIE-LCH	lch(88.24, 73.32, 116.93°)
OKLab	oklab(88.72% -0.0958 0.1495)
OKLCH	oklch(88.72% 0.178 122.6)
XYZ	xyz(54.7834, 72.5656, 20.3511)
Luminance	0.7257 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5EC58 #7F58EC

analogous

#ECC958 #C5EC58 #7BEC58

triadic

#C5EC58 #58C5EC #EC58C5

tetradic

#C5EC58 #58ECC9 #7F58EC #EC587B

square

#C5EC58 #58ECC9 #7F58EC #EC587B

split-complementary

#C5EC58 #587BEC #C958EC

monochromatic

#8BB515 #B2E621 #C5EC58 #D8F28F #EBF9C6

Accessibility & contrast

On white

1.35

#C5EC58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.51

#C5EC58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C5EC58

15.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5EC58	#FFFFFF	#000000	##000000
##C5EC58	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)

#F9DE45

Deuteranopia (green-blind)

#F4DD63

Tritanopia (blue-blind)

#CEE1CD

Achromatopsia (no color)

#DDDDDD

Design tokens & code

CSS

--color: #c5ec58;
/* rgb */ color: rgb(197, 236, 88);
/* oklch */ color: oklch(88.7% 0.178 122.6);

Tailwind

colors: {
  custom: {
    50: '#daf28d',
    500: '#c5ec58',
    950: '#000000',
  },
}

SCSS

$custom: #c5ec58;
$custom-light: #daf28d;
$custom-dark: #000000;

JSON

{
  "hex": "#c5ec58",
  "rgb": {
    "r": 197,
    "g": 236,
    "b": 88
  },
  "hsl": {
    "h": 75.811,
    "s": 79.57,
    "l": 63.529
  },
  "oklch": {
    "l": 0.88724,
    "c": 0.17752,
    "h": 122.6
  },
  "luminance": 0.72566
}

Semantic roles & 50–950 ramp

primary

#C5EC58

secondary

#5633B5

accent

#0ADC41

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15160D

muted

#84857F

Preview Lab

Preview with #C5EC58

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

Preview Lab → · Contrast checker → · Palette generator →