#EFFB80#EFFB80

#EFFB80 is a very light, vivid yellow. Relative luminance 0.889; OKLCH L 95.4% C 0.148 H 113.8°. Best body text is #000000 at 18.78:1 contrast (WCAG AA passes).

Color values

HEX	#EFFB80
RGB	rgb(239, 251, 128)
HSL	hsl(66, 94%, 74%)
HSV	hsv(66, 49%, 98%)
CMYK	cmyk(4.8%, 0%, 49%, 1.6%)
CIE-LAB	lab(95.54, -20.82, 57.05)
CIE-LCH	lch(95.54, 60.73, 110.05°)
OKLab	oklab(95.43% -0.0596 0.1351)
OKLCH	oklch(95.43% 0.148 113.8)
XYZ	xyz(73.9913, 88.9047, 33.6804)
Luminance	0.8890 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFB80 #8C80FB

analogous

#FBCA80 #EFFB80 #B2FB80

triadic

#EFFB80 #80EFFB #FB80EF

tetradic

#EFFB80 #80FBCA #8C80FB #FB80B2

square

#EFFB80 #80FBCA #8C80FB #FB80B2

split-complementary

#EFFB80 #80B2FB #CA80FB

monochromatic

#E0F709 #E8F945 #EFFB80 #F6FDBB #FBFEE1

Accessibility & contrast

On white

1.12

#EFFB80 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.78

#EFFB80 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFB80

18.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFB80	#FFFFFF	#000000	##000000
##EFFB80	1.00	1.12	18.78	18.78
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.78	21.00	1.00	1.00
##000000	18.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF175

Deuteranopia (green-blind)

#FFF487

Tritanopia (blue-blind)

#FCEFDF

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #effb80;
/* rgb */ color: rgb(239, 251, 128);
/* oklch */ color: oklch(95.4% 0.148 113.8);

Tailwind

colors: {
  custom: {
    50: '#f6fca8',
    500: '#effb80',
    950: '#000000',
  },
}

SCSS

$custom: #effb80;
$custom-light: #f6fca8;
$custom-dark: #000000;

JSON

{
  "hex": "#effb80",
  "rgb": {
    "r": 239,
    "g": 251,
    "b": 128
  },
  "hsl": {
    "h": 65.854,
    "s": 93.893,
    "l": 74.314
  },
  "oklch": {
    "l": 0.95432,
    "c": 0.1477,
    "h": 113.8
  },
  "luminance": 0.88904
}

Semantic roles & 50–950 ramp

primary

#EFFB80

secondary

#5546D9

accent

#00E616

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFFB80

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

Preview Lab → · Contrast checker → · Palette generator →