#EFF39D#EFF39D

#EFF39D is a very light, moderate yellow. Relative luminance 0.849; OKLCH L 94.2% C 0.108 H 110.6°. Best body text is #000000 at 17.98:1 contrast (WCAG AA passes).

Color values

HEX	#EFF39D
RGB	rgb(239, 243, 157)
HSL	hsl(63, 78%, 78%)
HSV	hsv(63, 35%, 95%)
CMYK	cmyk(1.6%, 0%, 35.4%, 4.7%)
CIE-LAB	lab(93.83, -14.00, 41.07)
CIE-LCH	lch(93.83, 43.39, 108.83°)
OKLab	oklab(94.19% -0.0379 0.101)
OKLCH	oklch(94.19% 0.108 110.6)
XYZ	xyz(73.7336, 84.8874, 44.3924)
Luminance	0.8489 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF39D #A19DF3

analogous

#F3CC9D #EFF39D #C4F39D

triadic

#EFF39D #9DEFF3 #F39DEF

tetradic

#EFF39D #9DF3CC #A19DF3 #F39DC4

square

#EFF39D #9DF3CC #A19DF3 #F39DC4

split-complementary

#EFF39D #9DC4F3 #CC9DF3

monochromatic

#DDE630 #E6EC66 #EFF39D #F8FAD4 #FBFCE4

Accessibility & contrast

On white

1.17

#EFF39D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.98

#EFF39D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF39D

17.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF39D	#FFFFFF	#000000	##000000
##EFF39D	1.00	1.17	17.98	17.98
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.98	21.00	1.00	1.00
##000000	17.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC97

Deuteranopia (green-blind)

#FFEFA1

Tritanopia (blue-blind)

#FAE9DD

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff39d;
/* rgb */ color: rgb(239, 243, 157);
/* oklch */ color: oklch(94.2% 0.108 110.6);

Tailwind

colors: {
  custom: {
    50: '#f5f7bb',
    500: '#eff39d',
    950: '#000000',
  },
}

SCSS

$custom: #eff39d;
$custom-light: #f5f7bb;
$custom-dark: #000000;

JSON

{
  "hex": "#eff39d",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 157
  },
  "hsl": {
    "h": 62.791,
    "s": 78.182,
    "l": 78.431
  },
  "oklch": {
    "l": 0.94193,
    "c": 0.10787,
    "h": 110.6
  },
  "luminance": 0.84886
}

Semantic roles & 50–950 ramp

primary

#EFF39D

secondary

#6863D1

accent

#0BDA15

background

#FFFFFD

surface

#FEFEF8

border

#D6D6D1

text

#171712

muted

#858582

Preview Lab

Preview with #EFF39D

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

Preview Lab → · Contrast checker → · Palette generator →