#E9FF58#E9FF58

#E9FF58 is a very light, vivid yellow. Relative luminance 0.895; OKLCH L 95.4% C 0.187 H 116.5°. Best body text is #000000 at 18.91:1 contrast (WCAG AA passes).

Color values

HEX	#E9FF58
RGB	rgb(233, 255, 88)
HSL	hsl(68, 100%, 67%)
HSV	hsv(68, 65%, 100%)
CMYK	cmyk(8.6%, 0%, 65.5%, 0%)
CIE-LAB	lab(95.81, -27.99, 74.06)
CIE-LCH	lch(95.81, 79.18, 110.70°)
OKLab	oklab(95.43% -0.0833 0.167)
OKLCH	oklch(95.43% 0.187 116.5)
XYZ	xyz(71.1273, 89.5491, 22.7684)
Luminance	0.8955 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E9FF58 #6E58FF

analogous

#FFC158 #E9FF58 #96FF58

triadic

#E9FF58 #58E9FF #FF58E9

tetradic

#E9FF58 #58FFC1 #6E58FF #FF5896

square

#E9FF58 #58FFC1 #6E58FF #FF5896

split-complementary

#E9FF58 #5896FF #C158FF

monochromatic

#C0DD00 #E1FF1B #E9FF58 #F1FF95 #F9FFD2

Accessibility & contrast

On white

1.11

#E9FF58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.91

#E9FF58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #E9FF58

18.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E9FF58	#FFFFFF	#000000	##000000
##E9FF58	1.00	1.11	18.91	18.91
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.91	21.00	1.00	1.00
##000000	18.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF240

Deuteranopia (green-blind)

#FFF464

Tritanopia (blue-blind)

#F7F1DD

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #e9ff58;
/* rgb */ color: rgb(233, 255, 88);
/* oklch */ color: oklch(95.4% 0.187 116.5);

Tailwind

colors: {
  custom: {
    50: '#f3ff8f',
    500: '#e9ff58',
    950: '#000000',
  },
}

SCSS

$custom: #e9ff58;
$custom-light: #f3ff8f;
$custom-dark: #000000;

JSON

{
  "hex": "#e9ff58",
  "rgb": {
    "r": 233,
    "g": 255,
    "b": 88
  },
  "hsl": {
    "h": 67.904,
    "s": 100,
    "l": 67.255
  },
  "oklch": {
    "l": 0.95426,
    "c": 0.18665,
    "h": 116.5
  },
  "luminance": 0.89548
}

Semantic roles & 50–950 ramp

primary

#E9FF58

secondary

#3D26D6

accent

#00E61E

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #E9FF58

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

Preview Lab → · Contrast checker → · Palette generator →