#EFF55F#EFF55F

#EFF55F is a very light, vivid yellow. Relative luminance 0.845; OKLCH L 93.8% C 0.169 H 111.4°. Best body text is #000000 at 17.90:1 contrast (WCAG AA passes).

Color values

HEX	#EFF55F
RGB	rgb(239, 245, 95)
HSL	hsl(62, 88%, 67%)
HSV	hsv(62, 61%, 96%)
CMYK	cmyk(2.4%, 0%, 61.2%, 3.9%)
CIE-LAB	lab(93.66, -20.46, 69.23)
CIE-LCH	lch(93.66, 72.19, 106.47°)
OKLab	oklab(93.83% -0.0618 0.1577)
OKLCH	oklch(93.83% 0.169 111.4)
XYZ	xyz(70.3165, 84.4834, 23.4271)
Luminance	0.8448 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF55F #655FF5

analogous

#F5B05F #EFF55F #A4F55F

triadic

#EFF55F #5FEFF5 #F55FEF

tetradic

#EFF55F #5FF5B0 #655FF5 #F55FA4

square

#EFF55F #5FF5B0 #655FF5 #F55FA4

split-complementary

#EFF55F #5FA4F5 #B05FF5

monochromatic

#C5CD0D #E9F125 #EFF55F #F5F999 #FBFCD2

Accessibility & contrast

On white

1.17

#EFF55F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.90

#EFF55F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF55F

17.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF55F	#FFFFFF	#000000	##000000
##EFF55F	1.00	1.17	17.90	17.90
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.90	21.00	1.00	1.00
##000000	17.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB4C

Deuteranopia (green-blind)

#FFEF69

Tritanopia (blue-blind)

#FEE7D6

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff55f;
/* rgb */ color: rgb(239, 245, 95);
/* oklch */ color: oklch(93.8% 0.169 111.4);

Tailwind

colors: {
  custom: {
    50: '#f7f893',
    500: '#eff55f',
    950: '#000000',
  },
}

SCSS

$custom: #eff55f;
$custom-light: #f7f893;
$custom-dark: #000000;

JSON

{
  "hex": "#eff55f",
  "rgb": {
    "r": 239,
    "g": 245,
    "b": 95
  },
  "hsl": {
    "h": 62.4,
    "s": 88.235,
    "l": 66.667
  },
  "oklch": {
    "l": 0.93829,
    "c": 0.16937,
    "h": 111.4
  },
  "luminance": 0.84482
}

Semantic roles & 50–950 ramp

primary

#EFF55F

secondary

#362FC9

accent

#01E50A

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF55F

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

Preview Lab → · Contrast checker → · Palette generator →