#EFFF6D#EFFF6D

#EFFF6D is a very light, vivid yellow. Relative luminance 0.910; OKLCH L 96.1% C 0.169 H 114.9°. Best body text is #000000 at 19.20:1 contrast (WCAG AA passes).

Color values

HEX	#EFFF6D
RGB	rgb(239, 255, 109)
HSL	hsl(67, 100%, 71%)
HSV	hsv(67, 57%, 100%)
CMYK	cmyk(6.3%, 0%, 57.3%, 0%)
CIE-LAB	lab(96.40, -24.26, 66.43)
CIE-LCH	lch(96.40, 70.72, 110.06°)
OKLab	oklab(96.06% -0.0712 0.1535)
OKLCH	oklch(96.06% 0.169 114.9)
XYZ	xyz(74.1184, 90.9760, 28.1207)
Luminance	0.9097 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFF6D #7D6DFF

analogous

#FFC66D #EFFF6D #A6FF6D

triadic

#EFFF6D #6DEFFF #FF6DEF

tetradic

#EFFF6D #6DFFC6 #7D6DFF #FF6DA6

square

#EFFF6D #6DFFC6 #7D6DFF #FF6DA6

split-complementary

#EFFF6D #6DA6FF #C66DFF

monochromatic

#D7F200 #E8FF30 #EFFF6D #F6FFAA #FCFFE0

Accessibility & contrast

On white

1.09

#EFFF6D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.20

#EFFF6D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFF6D

19.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFF6D	#FFFFFF	#000000	##000000
##EFFF6D	1.00	1.09	19.20	19.20
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.20	21.00	1.00	1.00
##000000	19.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF35D

Deuteranopia (green-blind)

#FFF676

Tritanopia (blue-blind)

#FDF2E0

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #efff6d;
/* rgb */ color: rgb(239, 255, 109);
/* oklch */ color: oklch(96.1% 0.169 114.9);

Tailwind

colors: {
  custom: {
    50: '#f7ff9c',
    500: '#efff6d',
    950: '#000000',
  },
}

SCSS

$custom: #efff6d;
$custom-light: #f7ff9c;
$custom-dark: #000000;

JSON

{
  "hex": "#efff6d",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 109
  },
  "hsl": {
    "h": 66.575,
    "s": 100,
    "l": 71.373
  },
  "oklch": {
    "l": 0.96058,
    "c": 0.16918,
    "h": 114.9
  },
  "luminance": 0.90975
}

Semantic roles & 50–950 ramp

primary

#EFFF6D

secondary

#4735DB

accent

#00E619

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170F

muted

#868580

Preview Lab

Preview with #EFFF6D

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

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