#CEF557#CEF557

#CEF557 is a very light, vivid yellow-green. Relative luminance 0.791; OKLCH L 91.3% C 0.185 H 122.0°. Best body text is #000000 at 16.82:1 contrast (WCAG AA passes).

Color values

HEX	#CEF557
RGB	rgb(206, 245, 87)
HSL	hsl(75, 89%, 65%)
HSV	hsv(75, 64%, 96%)
CMYK	cmyk(15.9%, 0%, 64.5%, 3.9%)
CIE-LAB	lab(91.29, -33.93, 69.18)
CIE-LCH	lch(91.29, 77.05, 116.13°)
OKLab	oklab(91.33% -0.0984 0.1572)
OKLCH	oklch(91.33% 0.185 122)
XYZ	xyz(59.8270, 79.1146, 21.1338)
Luminance	0.7912 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CEF557 #7E57F5

analogous

#F5CD57 #CEF557 #7FF557

triadic

#CEF557 #57CEF5 #F557CE

tetradic

#CEF557 #57F5CD #7E57F5 #F5577F

square

#CEF557 #57F5CD #7E57F5 #F5577F

split-complementary

#CEF557 #577FF5 #CD57F5

monochromatic

#98C60C #BDF21D #CEF557 #DFF891 #F0FCCB

Accessibility & contrast

On white

1.25

#CEF557 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.82

#CEF557 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #CEF557

16.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CEF557	#FFFFFF	#000000	##000000
##CEF557	1.00	1.25	16.82	16.82
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.82	21.00	1.00	1.00
##000000	16.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE742

Deuteranopia (green-blind)

#FEE663

Tritanopia (blue-blind)

#D8E9D5

Achromatopsia (no color)

#E6E6E6

Design tokens & code

CSS

--color: #cef557;
/* rgb */ color: rgb(206, 245, 87);
/* oklch */ color: oklch(91.3% 0.185 122.0);

Tailwind

colors: {
  custom: {
    50: '#e0f88e',
    500: '#cef557',
    950: '#000000',
  },
}

SCSS

$custom: #cef557;
$custom-light: #e0f88e;
$custom-dark: #000000;

JSON

{
  "hex": "#cef557",
  "rgb": {
    "r": 206,
    "g": 245,
    "b": 87
  },
  "hsl": {
    "h": 74.81,
    "s": 88.764,
    "l": 65.098
  },
  "oklch": {
    "l": 0.91326,
    "c": 0.18545,
    "h": 122
  },
  "luminance": 0.79115
}

Semantic roles & 50–950 ramp

primary

#CEF557

secondary

#522DC3

accent

#00E539

background

#FEFFFC

surface

#FCFFF4

border

#D5D7CE

text

#16170D

muted

#84857F

Preview Lab

Preview with #CEF557

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

Preview Lab → · Contrast checker → · Palette generator →