#CEF259#CEF259

#CEF259 is a very light, vivid yellow-green. Relative luminance 0.773; OKLCH L 90.7% C 0.180 H 121.4°. Best body text is #000000 at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#CEF259
RGB	rgb(206, 242, 89)
HSL	hsl(74, 85%, 65%)
HSV	hsv(74, 63%, 95%)
CMYK	cmyk(14.9%, 0%, 63.2%, 5.1%)
CIE-LAB	lab(90.48, -32.43, 67.54)
CIE-LCH	lch(90.48, 74.92, 115.65°)
OKLab	oklab(90.68% -0.094 0.154)
OKLCH	oklch(90.68% 0.18 121.4)
XYZ	xyz(59.0096, 77.3473, 21.2701)
Luminance	0.7735 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CEF259 #7D59F2

analogous

#F2CA59 #CEF259 #81F259

triadic

#CEF259 #59CEF2 #F259CE

tetradic

#CEF259 #59F2CA #7D59F2 #F25981

square

#CEF259 #59F2CA #7D59F2 #F25981

split-complementary

#CEF259 #5981F2 #CA59F2

monochromatic

#97C10F #BDEE20 #CEF259 #DFF692 #F0FBCB

Accessibility & contrast

On white

1.28

#CEF259 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.47

#CEF259 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CEF259

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CEF259	#FFFFFF	#000000	##000000
##CEF259	1.00	1.28	16.47	16.47
#FFFFFF	1.28	1.00	21.00	21.00
#000000	16.47	21.00	1.00	1.00
##000000	16.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE445

Deuteranopia (green-blind)

#FBE464

Tritanopia (blue-blind)

#D8E6D2

Achromatopsia (no color)

#E4E4E4

Design tokens & code

CSS

--color: #cef259;
/* rgb */ color: rgb(206, 242, 89);
/* oklch */ color: oklch(90.7% 0.180 121.4);

Tailwind

colors: {
  custom: {
    50: '#e0f68f',
    500: '#cef259',
    950: '#000000',
  },
}

SCSS

$custom: #cef259;
$custom-light: #e0f68f;
$custom-dark: #000000;

JSON

{
  "hex": "#cef259",
  "rgb": {
    "r": 206,
    "g": 242,
    "b": 89
  },
  "hsl": {
    "h": 74.118,
    "s": 85.475,
    "l": 64.902
  },
  "oklch": {
    "l": 0.90682,
    "c": 0.18045,
    "h": 121.4
  },
  "luminance": 0.77347
}

Semantic roles & 50–950 ramp

primary

#CEF259

secondary

#5230BF

accent

#04E238

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#16170D

muted

#84857F

Preview Lab

Preview with #CEF259

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

Preview Lab → · Contrast checker → · Palette generator →