#EFFF8A#EFFF8A

#EFFF8A is a very light, vivid yellow. Relative luminance 0.917; OKLCH L 96.4% C 0.143 H 115.5°. Best body text is #000000 at 19.34:1 contrast (WCAG AA passes).

Color values

HEX	#EFFF8A
RGB	rgb(239, 255, 138)
HSL	hsl(68, 100%, 77%)
HSV	hsv(68, 46%, 100%)
CMYK	cmyk(6.3%, 0%, 45.9%, 0%)
CIE-LAB	lab(96.70, -21.81, 53.82)
CIE-LCH	lch(96.70, 58.07, 112.06°)
OKLab	oklab(96.4% -0.0615 0.1288)
OKLCH	oklch(96.4% 0.143 115.5)
XYZ	xyz(75.9449, 91.7066, 37.7402)
Luminance	0.9171 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFF8A #9A8AFF

analogous

#FFD58A #EFFF8A #B5FF8A

triadic

#EFFF8A #8AEFFF #FF8AEF

tetradic

#EFFF8A #8AFFD5 #9A8AFF #FF8AB5

square

#EFFF8A #8AFFD5 #9A8AFF #FF8AB5

split-complementary

#EFFF8A #8AB5FF #D58AFF

monochromatic

#DEFF10 #E7FF4D #EFFF8A #F7FFC7 #FBFFE0

Accessibility & contrast

On white

1.09

#EFFF8A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.34

#EFFF8A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFF8A

19.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFF8A	#FFFFFF	#000000	##000000
##EFFF8A	1.00	1.09	19.34	19.34
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.34	21.00	1.00	1.00
##000000	19.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF580

Deuteranopia (green-blind)

#FFF790

Tritanopia (blue-blind)

#FBF4E4

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #efff8a;
/* rgb */ color: rgb(239, 255, 138);
/* oklch */ color: oklch(96.4% 0.143 115.5);

Tailwind

colors: {
  custom: {
    50: '#f6ffae',
    500: '#efff8a',
    950: '#000000',
  },
}

SCSS

$custom: #efff8a;
$custom-light: #f6ffae;
$custom-dark: #000000;

JSON

{
  "hex": "#efff8a",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 138
  },
  "hsl": {
    "h": 68.205,
    "s": 100,
    "l": 77.059
  },
  "oklch": {
    "l": 0.96395,
    "c": 0.14273,
    "h": 115.5
  },
  "luminance": 0.91706
}

Semantic roles & 50–950 ramp

primary

#EFFF8A

secondary

#624EE0

accent

#00E61F

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171810

muted

#858681

Preview Lab

Preview with #EFFF8A

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

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