#EFF55D#EFF55D

#EFF55D is a very light, vivid yellow. Relative luminance 0.844; OKLCH L 93.8% C 0.171 H 111.4°. Best body text is #000000 at 17.89:1 contrast (WCAG AA passes).

Color values

HEX	#EFF55D
RGB	rgb(239, 245, 93)
HSL	hsl(62, 88%, 66%)
HSV	hsv(62, 62%, 96%)
CMYK	cmyk(2.4%, 0%, 62%, 3.9%)
CIE-LAB	lab(93.64, -20.59, 70.01)
CIE-LCH	lch(93.64, 72.97, 106.39°)
OKLab	oklab(93.81% -0.0624 0.1591)
OKLCH	oklch(93.81% 0.171 111.4)
XYZ	xyz(70.2268, 84.4475, 22.9544)
Luminance	0.8445 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF55D #635DF5

analogous

#F5AF5D #EFF55D #A3F55D

triadic

#EFF55D #5DEFF5 #F55DEF

tetradic

#EFF55D #5DF5AF #635DF5 #F55DA3

square

#EFF55D #5DF5AF #635DF5 #F55DA3

split-complementary

#EFF55D #5DA3F5 #AF5DF5

monochromatic

#C4CB0D #E9F123 #EFF55D #F5F997 #FAFCD0

Accessibility & contrast

On white

1.17

#EFF55D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.89

#EFF55D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF55D

17.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF55D	#FFFFFF	#000000	##000000
##EFF55D	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)

#FFEB4A

Deuteranopia (green-blind)

#FFEF67

Tritanopia (blue-blind)

#FEE7D5

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff55d;
/* rgb */ color: rgb(239, 245, 93);
/* oklch */ color: oklch(93.8% 0.171 111.4);

Tailwind

colors: {
  custom: {
    50: '#f7f891',
    500: '#eff55d',
    950: '#000000',
  },
}

SCSS

$custom: #eff55d;
$custom-light: #f7f891;
$custom-dark: #000000;

JSON

{
  "hex": "#eff55d",
  "rgb": {
    "r": 239,
    "g": 245,
    "b": 93
  },
  "hsl": {
    "h": 62.368,
    "s": 88.372,
    "l": 66.275
  },
  "oklch": {
    "l": 0.93811,
    "c": 0.17086,
    "h": 111.4
  },
  "luminance": 0.84446
}

Semantic roles & 50–950 ramp

primary

#EFF55D

secondary

#352FC7

accent

#01E50A

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF55D

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

Preview Lab → · Contrast checker → · Palette generator →