#E9FF55#E9FF55

#E9FF55 is a very light, vivid yellow. Relative luminance 0.895; OKLCH L 95.4% C 0.189 H 116.5°. Best body text is #000000 at 18.90:1 contrast (WCAG AA passes).

Color values

HEX	#E9FF55
RGB	rgb(233, 255, 85)
HSL	hsl(68, 100%, 67%)
HSV	hsv(68, 67%, 100%)
CMYK	cmyk(8.6%, 0%, 66.7%, 0%)
CIE-LAB	lab(95.79, -28.16, 75.15)
CIE-LCH	lch(95.79, 80.26, 110.54°)
OKLab	oklab(95.4% -0.0841 0.1689)
OKLCH	oklch(95.4% 0.189 116.5)
XYZ	xyz(71.0056, 89.5004, 22.1273)
Luminance	0.8950 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E9FF55 #6B55FF

analogous

#FFC055 #E9FF55 #94FF55

triadic

#E9FF55 #55E9FF #FF55E9

tetradic

#E9FF55 #55FFC0 #6B55FF #FF5594

square

#E9FF55 #55FFC0 #6B55FF #FF5594

split-complementary

#E9FF55 #5594FF #C055FF

monochromatic

#BDDA00 #E1FF18 #E9FF55 #F1FF92 #F9FFCF

Accessibility & contrast

On white

1.11

#E9FF55 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.90

#E9FF55 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #E9FF55

18.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E9FF55	#FFFFFF	#000000	##000000
##E9FF55	1.00	1.11	18.90	18.90
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.90	21.00	1.00	1.00
##000000	18.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF23B

Deuteranopia (green-blind)

#FFF462

Tritanopia (blue-blind)

#F7F1DD

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #e9ff55;
/* rgb */ color: rgb(233, 255, 85);
/* oklch */ color: oklch(95.4% 0.189 116.5);

Tailwind

colors: {
  custom: {
    50: '#f3ff8e',
    500: '#e9ff55',
    950: '#000000',
  },
}

SCSS

$custom: #e9ff55;
$custom-light: #f3ff8e;
$custom-dark: #000000;

JSON

{
  "hex": "#e9ff55",
  "rgb": {
    "r": 233,
    "g": 255,
    "b": 85
  },
  "hsl": {
    "h": 67.765,
    "s": 100,
    "l": 66.667
  },
  "oklch": {
    "l": 0.95403,
    "c": 0.18864,
    "h": 116.5
  },
  "luminance": 0.895
}

Semantic roles & 50–950 ramp

primary

#E9FF55

secondary

#3C25D3

accent

#00E61E

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #E9FF55

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

Preview Lab → · Contrast checker → · Palette generator →