#CEF159#CEF159

#CEF159 is a very light, vivid yellow-green. Relative luminance 0.768; OKLCH L 90.5% C 0.179 H 121.2°. Best body text is #000000 at 16.35:1 contrast (WCAG AA passes).

Color values

HEX	#CEF159
RGB	rgb(206, 241, 89)
HSL	hsl(74, 84%, 65%)
HSV	hsv(74, 63%, 95%)
CMYK	cmyk(14.5%, 0%, 63.1%, 5.5%)
CIE-LAB	lab(90.21, -31.97, 67.25)
CIE-LCH	lch(90.21, 74.46, 115.42°)
OKLab	oklab(90.46% -0.0928 0.1534)
OKLCH	oklch(90.46% 0.179 121.2)
XYZ	xyz(58.7128, 76.7537, 21.1711)
Luminance	0.7675 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CEF159 #7C59F1

analogous

#F1C859 #CEF159 #82F159

triadic

#CEF159 #59CEF1 #F159CE

tetradic

#CEF159 #59F1C8 #7C59F1 #F15982

square

#CEF159 #59F1C8 #7C59F1 #F15982

split-complementary

#CEF159 #5982F1 #C859F1

monochromatic

#97BF10 #BDEC21 #CEF159 #DFF691 #EFFBCA

Accessibility & contrast

On white

1.28

#CEF159 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.35

#CEF159 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CEF159

16.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CEF159	#FFFFFF	#000000	##000000
##CEF159	1.00	1.28	16.35	16.35
#FFFFFF	1.28	1.00	21.00	21.00
#000000	16.35	21.00	1.00	1.00
##000000	16.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE445

Deuteranopia (green-blind)

#FBE364

Tritanopia (blue-blind)

#D8E5D2

Achromatopsia (no color)

#E3E3E3

Design tokens & code

CSS

--color: #cef159;
/* rgb */ color: rgb(206, 241, 89);
/* oklch */ color: oklch(90.5% 0.179 121.2);

Tailwind

colors: {
  custom: {
    50: '#e0f58e',
    500: '#cef159',
    950: '#000000',
  },
}

SCSS

$custom: #cef159;
$custom-light: #e0f58e;
$custom-dark: #000000;

JSON

{
  "hex": "#cef159",
  "rgb": {
    "r": 206,
    "g": 241,
    "b": 89
  },
  "hsl": {
    "h": 73.816,
    "s": 84.444,
    "l": 64.706
  },
  "oklch": {
    "l": 0.90462,
    "c": 0.17926,
    "h": 121.2
  },
  "luminance": 0.76754
}

Semantic roles & 50–950 ramp

primary

#CEF159

secondary

#5131BE

accent

#05E137

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#16170D

muted

#84857F

Preview Lab

Preview with #CEF159

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

Preview Lab → · Contrast checker → · Palette generator →