#EFF856#EFF856

#EFF856 is a very light, vivid yellow. Relative luminance 0.862; OKLCH L 94.4% C 0.179 H 112.4°. Best body text is #000000 at 18.23:1 contrast (WCAG AA passes).

Color values

HEX	#EFF856
RGB	rgb(239, 248, 86)
HSL	hsl(63, 92%, 65%)
HSV	hsv(63, 65%, 97%)
CMYK	cmyk(3.6%, 0%, 65.3%, 2.7%)
CIE-LAB	lab(94.38, -22.43, 73.49)
CIE-LCH	lch(94.38, 76.83, 106.98°)
OKLab	oklab(94.38% -0.0683 0.1654)
OKLCH	oklch(94.38% 0.179 112.4)
XYZ	xyz(70.8458, 86.1590, 21.7006)
Luminance	0.8616 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF856 #5F56F8

analogous

#F8B056 #EFF856 #9EF856

triadic

#EFF856 #56EFF8 #F856EF

tetradic

#EFF856 #56F8B0 #5F56F8 #F8569E

square

#EFF856 #56F8B0 #5F56F8 #F8569E

split-complementary

#EFF856 #569EF8 #B056F8

monochromatic

#C0CB08 #E9F61B #EFF856 #F5FA91 #FAFDCC

Accessibility & contrast

On white

1.15

#EFF856 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.23

#EFF856 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF856

18.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF856	#FFFFFF	#000000	##000000
##EFF856	1.00	1.15	18.23	18.23
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.23	21.00	1.00	1.00
##000000	18.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED3F

Deuteranopia (green-blind)

#FFF161

Tritanopia (blue-blind)

#FEEAD7

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #eff856;
/* rgb */ color: rgb(239, 248, 86);
/* oklch */ color: oklch(94.4% 0.179 112.4);

Tailwind

colors: {
  custom: {
    50: '#f8fa8e',
    500: '#eff856',
    950: '#000000',
  },
}

SCSS

$custom: #eff856;
$custom-light: #f8fa8e;
$custom-dark: #000000;

JSON

{
  "hex": "#eff856",
  "rgb": {
    "r": 239,
    "g": 248,
    "b": 86
  },
  "hsl": {
    "h": 63.333,
    "s": 92.045,
    "l": 65.49
  },
  "oklch": {
    "l": 0.94383,
    "c": 0.17891,
    "h": 112.4
  },
  "luminance": 0.86157
}

Semantic roles & 50–950 ramp

primary

#EFF856

secondary

#342BC7

accent

#00E60D

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF856

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

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