#EFF88B#EFF88B

#EFF88B is a very light, vivid yellow. Relative luminance 0.874; OKLCH L 95.0% C 0.133 H 112.8°. Best body text is #000000 at 18.47:1 contrast (WCAG AA passes).

Color values

HEX	#EFF88B
RGB	rgb(239, 248, 139)
HSL	hsl(65, 89%, 76%)
HSV	hsv(65, 44%, 97%)
CMYK	cmyk(3.6%, 0%, 44%, 2.7%)
CIE-LAB	lab(94.89, -18.35, 51.13)
CIE-LCH	lch(94.89, 54.32, 109.74°)
OKLab	oklab(94.95% -0.0516 0.1229)
OKLCH	oklch(94.95% 0.133 112.8)
XYZ	xyz(73.8252, 87.3508, 37.3924)
Luminance	0.8735 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF88B #948BF8

analogous

#F8CA8B #EFF88B #B8F88B

triadic

#EFF88B #8BEFF8 #F88BEF

tetradic

#EFF88B #8BF8CA #948BF8 #F88BB8

square

#EFF88B #8BF8CA #948BF8 #F88BB8

split-complementary

#EFF88B #8BB8F8 #CA8BF8

monochromatic

#DFF118 #E7F551 #EFF88B #F7FBC5 #FBFDE2

Accessibility & contrast

On white

1.14

#EFF88B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.47

#EFF88B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF88B

18.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF88B	#FFFFFF	#000000	##000000
##EFF88B	1.00	1.14	18.47	18.47
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.47	21.00	1.00	1.00
##000000	18.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF82

Deuteranopia (green-blind)

#FFF290

Tritanopia (blue-blind)

#FBEDDE

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #eff88b;
/* rgb */ color: rgb(239, 248, 139);
/* oklch */ color: oklch(95.0% 0.133 112.8);

Tailwind

colors: {
  custom: {
    50: '#f6faaf',
    500: '#eff88b',
    950: '#000000',
  },
}

SCSS

$custom: #eff88b;
$custom-light: #f6faaf;
$custom-dark: #000000;

JSON

{
  "hex": "#eff88b",
  "rgb": {
    "r": 239,
    "g": 248,
    "b": 139
  },
  "hsl": {
    "h": 64.954,
    "s": 88.618,
    "l": 75.882
  },
  "oklch": {
    "l": 0.94951,
    "c": 0.13328,
    "h": 112.8
  },
  "luminance": 0.8735
}

Semantic roles & 50–950 ramp

primary

#EFF88B

secondary

#5C51D6

accent

#00E513

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF88B

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

Preview Lab → · Contrast checker → · Palette generator →