#EFF55E#EFF55E

#EFF55E is a very light, vivid yellow. Relative luminance 0.845; OKLCH L 93.8% C 0.170 H 111.4°. Best body text is #000000 at 17.89:1 contrast (WCAG AA passes).

Color values

HEX	#EFF55E
RGB	rgb(239, 245, 94)
HSL	hsl(62, 88%, 66%)
HSV	hsv(62, 62%, 96%)
CMYK	cmyk(2.4%, 0%, 61.6%, 3.9%)
CIE-LAB	lab(93.65, -20.52, 69.62)
CIE-LCH	lch(93.65, 72.58, 106.42°)
OKLab	oklab(93.82% -0.0621 0.1584)
OKLCH	oklch(93.82% 0.17 111.4)
XYZ	xyz(70.2714, 84.4653, 23.1892)
Luminance	0.8446 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF55E #645EF5

analogous

#F5B05E #EFF55E #A4F55E

triadic

#EFF55E #5EEFF5 #F55EEF

tetradic

#EFF55E #5EF5B0 #645EF5 #F55EA4

square

#EFF55E #5EF5B0 #645EF5 #F55EA4

split-complementary

#EFF55E #5EA4F5 #B05EF5

monochromatic

#C4CC0D #E9F124 #EFF55E #F5F998 #FAFCD1

Accessibility & contrast

On white

1.17

#EFF55E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.89

#EFF55E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF55E

17.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF55E	#FFFFFF	#000000	##000000
##EFF55E	1.00	1.17	17.89	17.89
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.89	21.00	1.00	1.00
##000000	17.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB4B

Deuteranopia (green-blind)

#FFEF68

Tritanopia (blue-blind)

#FEE7D6

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff55e;
/* rgb */ color: rgb(239, 245, 94);
/* oklch */ color: oklch(93.8% 0.170 111.4);

Tailwind

colors: {
  custom: {
    50: '#f7f892',
    500: '#eff55e',
    950: '#000000',
  },
}

SCSS

$custom: #eff55e;
$custom-light: #f7f892;
$custom-dark: #000000;

JSON

{
  "hex": "#eff55e",
  "rgb": {
    "r": 239,
    "g": 245,
    "b": 94
  },
  "hsl": {
    "h": 62.384,
    "s": 88.304,
    "l": 66.471
  },
  "oklch": {
    "l": 0.9382,
    "c": 0.17011,
    "h": 111.4
  },
  "luminance": 0.84464
}

Semantic roles & 50–950 ramp

primary

#EFF55E

secondary

#352FC8

accent

#01E50A

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF55E

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

Preview Lab → · Contrast checker → · Palette generator →