#EFF57D#EFF57D

#EFF57D is a very light, vivid yellow. Relative luminance 0.851; OKLCH L 94.1% C 0.144 H 111.4°. Best body text is #000000 at 18.03:1 contrast (WCAG AA passes).

Color values

HEX	#EFF57D
RGB	rgb(239, 245, 125)
HSL	hsl(63, 86%, 73%)
HSV	hsv(63, 49%, 96%)
CMYK	cmyk(2.4%, 0%, 49%, 3.9%)
CIE-LAB	lab(93.94, -18.20, 56.53)
CIE-LCH	lch(93.94, 59.38, 107.84°)
OKLab	oklab(94.15% -0.0524 0.1337)
OKLCH	oklch(94.15% 0.144 111.4)
XYZ	xyz(71.9521, 85.1376, 32.0409)
Luminance	0.8514 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF57D #837DF5

analogous

#F5BF7D #EFF57D #B3F57D

triadic

#EFF57D #7DEFF5 #F57DEF

tetradic

#EFF57D #7DF5BF #837DF5 #F57DB3

square

#EFF57D #7DF5BF #837DF5 #F57DB3

split-complementary

#EFF57D #7DB3F5 #BF7DF5

monochromatic

#DBE612 #E8F144 #EFF57D #F6F9B6 #FCFDE3

Accessibility & contrast

On white

1.16

#EFF57D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.03

#EFF57D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF57D

18.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF57D	#FFFFFF	#000000	##000000
##EFF57D	1.00	1.16	18.03	18.03
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.03	21.00	1.00	1.00
##000000	18.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC72

Deuteranopia (green-blind)

#FFEF83

Tritanopia (blue-blind)

#FCE9DA

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #eff57d;
/* rgb */ color: rgb(239, 245, 125);
/* oklch */ color: oklch(94.1% 0.144 111.4);

Tailwind

colors: {
  custom: {
    50: '#f6f8a5',
    500: '#eff57d',
    950: '#000000',
  },
}

SCSS

$custom: #eff57d;
$custom-light: #f6f8a5;
$custom-dark: #000000;

JSON

{
  "hex": "#eff57d",
  "rgb": {
    "r": 239,
    "g": 245,
    "b": 125
  },
  "hsl": {
    "h": 63,
    "s": 85.714,
    "l": 72.549
  },
  "oklch": {
    "l": 0.94145,
    "c": 0.14366,
    "h": 111.4
  },
  "luminance": 0.85136
}

Semantic roles & 50–950 ramp

primary

#EFF57D

secondary

#4D46D1

accent

#03E20E

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF57D

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

Preview Lab → · Contrast checker → · Palette generator →