#E3FC51#E3FC51

#E3FC51 is a very light, vivid yellow. Relative luminance 0.865; OKLCH L 94.3% C 0.190 H 117.4°. Best body text is #000000 at 18.31:1 contrast (WCAG AA passes).

Color values

HEX	#E3FC51
RGB	rgb(227, 252, 81)
HSL	hsl(69, 97%, 65%)
HSV	hsv(69, 68%, 99%)
CMYK	cmyk(9.9%, 0%, 67.9%, 1.2%)
CIE-LAB	lab(94.55, -29.35, 75.21)
CIE-LCH	lch(94.55, 80.74, 111.32°)
OKLab	oklab(94.29% -0.0874 0.1686)
OKLCH	oklch(94.29% 0.19 117.4)
XYZ	xyz(67.9757, 86.5465, 20.9072)
Luminance	0.8655 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E3FC51 #6A51FC

analogous

#FCBF51 #E3FC51 #8DFC51

triadic

#E3FC51 #51E3FC #FC51E3

tetradic

#E3FC51 #51FCBF #6A51FC #FC518D

square

#E3FC51 #51FCBF #6A51FC #FC518D

split-complementary

#E3FC51 #518DFC #BF51FC

monochromatic

#B1CF04 #D9FB15 #E3FC51 #EDFD8D #F6FEC9

Accessibility & contrast

On white

1.15

#E3FC51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.31

#E3FC51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #E3FC51

18.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E3FC51	#FFFFFF	#000000	##000000
##E3FC51	1.00	1.15	18.31	18.31
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.31	21.00	1.00	1.00
##000000	18.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF36

Deuteranopia (green-blind)

#FFF05E

Tritanopia (blue-blind)

#F0EEDA

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #e3fc51;
/* rgb */ color: rgb(227, 252, 81);
/* oklch */ color: oklch(94.3% 0.190 117.4);

Tailwind

colors: {
  custom: {
    50: '#effd8b',
    500: '#e3fc51',
    950: '#000000',
  },
}

SCSS

$custom: #e3fc51;
$custom-light: #effd8b;
$custom-dark: #000000;

JSON

{
  "hex": "#e3fc51",
  "rgb": {
    "r": 227,
    "g": 252,
    "b": 81
  },
  "hsl": {
    "h": 68.772,
    "s": 96.61,
    "l": 65.294
  },
  "oklch": {
    "l": 0.94291,
    "c": 0.18987,
    "h": 117.4
  },
  "luminance": 0.86546
}

Semantic roles & 50–950 ramp

primary

#E3FC51

secondary

#3F27CA

accent

#00E622

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #E3FC51

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

Preview Lab → · Contrast checker → · Palette generator →