#EFF855#EFF855

#EFF855 is a very light, vivid yellow. Relative luminance 0.861; OKLCH L 94.4% C 0.180 H 112.4°. Best body text is #000000 at 18.23:1 contrast (WCAG AA passes).

Color values

HEX	#EFF855
RGB	rgb(239, 248, 85)
HSL	hsl(63, 92%, 65%)
HSV	hsv(63, 66%, 97%)
CMYK	cmyk(3.6%, 0%, 65.7%, 2.7%)
CIE-LAB	lab(94.37, -22.49, 73.85)
CIE-LCH	lch(94.37, 77.20, 106.94°)
OKLab	oklab(94.38% -0.0685 0.166)
OKLCH	oklch(94.38% 0.18 112.4)
XYZ	xyz(70.8058, 86.1430, 21.4899)
Luminance	0.8614 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF855 #5E55F8

analogous

#F8B055 #EFF855 #9DF855

triadic

#EFF855 #55EFF8 #F855EF

tetradic

#EFF855 #55F8B0 #5E55F8 #F8559D

square

#EFF855 #55F8B0 #5E55F8 #F8559D

split-complementary

#EFF855 #559DF8 #B055F8

monochromatic

#C0CA08 #E9F61A #EFF855 #F5FA90 #FAFDCB

Accessibility & contrast

On white

1.15

#EFF855 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.23

#EFF855 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF855

18.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF855	#FFFFFF	#000000	##000000
##EFF855	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)

#FFED3D

Deuteranopia (green-blind)

#FFF160

Tritanopia (blue-blind)

#FEEAD7

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #eff855;
/* rgb */ color: rgb(239, 248, 85);
/* oklch */ color: oklch(94.4% 0.180 112.4);

Tailwind

colors: {
  custom: {
    50: '#f8fa8d',
    500: '#eff855',
    950: '#000000',
  },
}

SCSS

$custom: #eff855;
$custom-light: #f8fa8d;
$custom-dark: #000000;

JSON

{
  "hex": "#eff855",
  "rgb": {
    "r": 239,
    "g": 248,
    "b": 85
  },
  "hsl": {
    "h": 63.313,
    "s": 92.09,
    "l": 65.294
  },
  "oklch": {
    "l": 0.94376,
    "c": 0.17958,
    "h": 112.4
  },
  "luminance": 0.86141
}

Semantic roles & 50–950 ramp

primary

#EFF855

secondary

#332BC6

accent

#00E60D

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF855

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

Preview Lab → · Contrast checker → · Palette generator →