#C9EC58#C9EC58

#C9EC58 is a very light, vivid yellow-green. Relative luminance 0.731; OKLCH L 89.0% C 0.176 H 121.4°. Best body text is #000000 at 15.62:1 contrast (WCAG AA passes).

Color values

HEX	#C9EC58
RGB	rgb(201, 236, 88)
HSL	hsl(74, 80%, 64%)
HSV	hsv(74, 63%, 93%)
CMYK	cmyk(14.8%, 0%, 62.7%, 7.5%)
CIE-LAB	lab(88.50, -31.66, 65.73)
CIE-LCH	lch(88.50, 72.96, 115.72°)
OKLab	oklab(89% -0.0917 0.1502)
OKLCH	oklch(89% 0.176 121.4)
XYZ	xyz(55.8450, 73.1130, 20.4008)
Luminance	0.7311 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9EC58 #7B58EC

analogous

#ECC558 #C9EC58 #7FEC58

triadic

#C9EC58 #58C9EC #EC58C9

tetradic

#C9EC58 #58ECC5 #7B58EC #EC587F

square

#C9EC58 #58ECC5 #7B58EC #EC587F

split-complementary

#C9EC58 #587FEC #C558EC

monochromatic

#8FB515 #B7E621 #C9EC58 #DBF28F #EDF9C6

Accessibility & contrast

On white

1.34

#C9EC58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.62

#C9EC58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9EC58

15.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9EC58	#FFFFFF	#000000	##000000
##C9EC58	1.00	1.34	15.62	15.62
#FFFFFF	1.34	1.00	21.00	21.00
#000000	15.62	21.00	1.00	1.00
##000000	15.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FADF45

Deuteranopia (green-blind)

#F5DE63

Tritanopia (blue-blind)

#D3E1CD

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #c9ec58;
/* rgb */ color: rgb(201, 236, 88);
/* oklch */ color: oklch(89.0% 0.176 121.4);

Tailwind

colors: {
  custom: {
    50: '#dcf28d',
    500: '#c9ec58',
    950: '#000000',
  },
}

SCSS

$custom: #c9ec58;
$custom-light: #dcf28d;
$custom-dark: #000000;

JSON

{
  "hex": "#c9ec58",
  "rgb": {
    "r": 201,
    "g": 236,
    "b": 88
  },
  "hsl": {
    "h": 74.189,
    "s": 79.57,
    "l": 63.529
  },
  "oklch": {
    "l": 0.89001,
    "c": 0.17594,
    "h": 121.4
  },
  "luminance": 0.73113
}

Semantic roles & 50–950 ramp

primary

#C9EC58

secondary

#5233B5

accent

#0ADC3B

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15160D

muted

#84857F

Preview Lab

Preview with #C9EC58

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

Preview Lab → · Contrast checker → · Palette generator →