#C5EF58#C5EF58

#C5EF58 is a very light, vivid yellow-green. Relative luminance 0.743; OKLCH L 89.4% C 0.181 H 123.3°. Best body text is #000000 at 15.86:1 contrast (WCAG AA passes).

Color values

HEX	#C5EF58
RGB	rgb(197, 239, 88)
HSL	hsl(77, 83%, 64%)
HSV	hsv(77, 63%, 94%)
CMYK	cmyk(17.6%, 0%, 63.2%, 6.3%)
CIE-LAB	lab(89.07, -34.58, 66.26)
CIE-LCH	lch(89.07, 74.74, 117.56°)
OKLab	oklab(89.39% -0.0996 0.1513)
OKLCH	oklch(89.39% 0.181 123.3)
XYZ	xyz(55.6544, 74.3076, 20.6414)
Luminance	0.7431 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5EF58 #8258EF

analogous

#EFCE58 #C5EF58 #7AEF58

triadic

#C5EF58 #58C5EF #EF58C5

tetradic

#C5EF58 #58EFCE #8258EF #EF587A

square

#C5EF58 #58EFCE #8258EF #EF587A

split-complementary

#C5EF58 #587AEF #CE58EF

monochromatic

#8CBB12 #B2EA20 #C5EF58 #D8F490 #ECFAC8

Accessibility & contrast

On white

1.32

#C5EF58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.86

#C5EF58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C5EF58

15.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5EF58	#FFFFFF	#000000	##000000
##C5EF58	1.00	1.32	15.86	15.86
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.86	21.00	1.00	1.00
##000000	15.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE145

Deuteranopia (green-blind)

#F6DF63

Tritanopia (blue-blind)

#CEE4D0

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #c5ef58;
/* rgb */ color: rgb(197, 239, 88);
/* oklch */ color: oklch(89.4% 0.181 123.3);

Tailwind

colors: {
  custom: {
    50: '#daf48e',
    500: '#c5ef58',
    950: '#000000',
  },
}

SCSS

$custom: #c5ef58;
$custom-light: #daf48e;
$custom-dark: #000000;

JSON

{
  "hex": "#c5ef58",
  "rgb": {
    "r": 197,
    "g": 239,
    "b": 88
  },
  "hsl": {
    "h": 76.689,
    "s": 82.514,
    "l": 64.118
  },
  "oklch": {
    "l": 0.89391,
    "c": 0.18116,
    "h": 123.3
  },
  "luminance": 0.74308
}

Semantic roles & 50–950 ramp

primary

#C5EF58

secondary

#5732BA

accent

#07DF43

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #C5EF58

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

Preview Lab → · Contrast checker → · Palette generator →