#EFFC80#EFFC80

#EFFC80 is a very light, vivid yellow. Relative luminance 0.895; OKLCH L 95.6% C 0.149 H 114.2°. Best body text is #000000 at 18.91:1 contrast (WCAG AA passes).

Color values

HEX	#EFFC80
RGB	rgb(239, 252, 128)
HSL	hsl(66, 95%, 75%)
HSV	hsv(66, 49%, 99%)
CMYK	cmyk(5.2%, 0%, 49.2%, 1.2%)
CIE-LAB	lab(95.80, -21.30, 57.36)
CIE-LCH	lch(95.80, 61.19, 110.37°)
OKLab	oklab(95.64% -0.061 0.1358)
OKLCH	oklch(95.64% 0.149 114.2)
XYZ	xyz(74.3045, 89.5311, 33.7848)
Luminance	0.8953 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFC80 #8D80FC

analogous

#FCCB80 #EFFC80 #B1FC80

triadic

#EFFC80 #80EFFC #FC80EF

tetradic

#EFFC80 #80FCCB #8D80FC #FC80B1

square

#EFFC80 #80FCCB #8D80FC #FC80B1

split-complementary

#EFFC80 #80B1FC #CB80FC

monochromatic

#E0F908 #E7FB44 #EFFC80 #F7FDBC #FBFEE1

Accessibility & contrast

On white

1.11

#EFFC80 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.91

#EFFC80 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFC80

18.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFC80	#FFFFFF	#000000	##000000
##EFFC80	1.00	1.11	18.91	18.91
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.91	21.00	1.00	1.00
##000000	18.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF275

Deuteranopia (green-blind)

#FFF487

Tritanopia (blue-blind)

#FCF0E0

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effc80;
/* rgb */ color: rgb(239, 252, 128);
/* oklch */ color: oklch(95.6% 0.149 114.2);

Tailwind

colors: {
  custom: {
    50: '#f6fda8',
    500: '#effc80',
    950: '#000000',
  },
}

SCSS

$custom: #effc80;
$custom-light: #f6fda8;
$custom-dark: #000000;

JSON

{
  "hex": "#effc80",
  "rgb": {
    "r": 239,
    "g": 252,
    "b": 128
  },
  "hsl": {
    "h": 66.29,
    "s": 95.385,
    "l": 74.51
  },
  "oklch": {
    "l": 0.9564,
    "c": 0.14887,
    "h": 114.2
  },
  "luminance": 0.8953
}

Semantic roles & 50–950 ramp

primary

#EFFC80

secondary

#5646DA

accent

#00E618

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFFC80

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

Preview Lab → · Contrast checker → · Palette generator →