#EFFD8B#EFFD8B

#EFFD8B is a very light, vivid yellow. Relative luminance 0.905; OKLCH L 96.0% C 0.139 H 114.8°. Best body text is #000000 at 19.09:1 contrast (WCAG AA passes).

Color values

HEX	#EFFD8B
RGB	rgb(239, 253, 139)
HSL	hsl(67, 97%, 77%)
HSV	hsv(67, 45%, 99%)
CMYK	cmyk(5.5%, 0%, 45.1%, 0.8%)
CIE-LAB	lab(96.19, -20.75, 52.73)
CIE-LCH	lch(96.19, 56.67, 111.48°)
OKLab	oklab(95.99% -0.0585 0.1264)
OKLCH	oklch(95.99% 0.139 114.8)
XYZ	xyz(75.3830, 90.4663, 37.9117)
Luminance	0.9046 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFD8B #998BFD

analogous

#FDD28B #EFFD8B #B6FD8B

triadic

#EFFD8B #8BEFFD #FD8BEF

tetradic

#EFFD8B #8BFDD2 #998BFD #FD8BB6

square

#EFFD8B #8BFDD2 #998BFD #FD8BB6

split-complementary

#EFFD8B #8BB6FD #D28BFD

monochromatic

#DEFB13 #E7FC4F #EFFD8B #F7FEC7 #FBFEE1

Accessibility & contrast

On white

1.10

#EFFD8B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.09

#EFFD8B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFD8B

19.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFD8B	#FFFFFF	#000000	##000000
##EFFD8B	1.00	1.10	19.09	19.09
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.09	21.00	1.00	1.00
##000000	19.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF381

Deuteranopia (green-blind)

#FFF591

Tritanopia (blue-blind)

#FBF2E2

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #effd8b;
/* rgb */ color: rgb(239, 253, 139);
/* oklch */ color: oklch(96.0% 0.139 114.8);

Tailwind

colors: {
  custom: {
    50: '#f6feaf',
    500: '#effd8b',
    950: '#000000',
  },
}

SCSS

$custom: #effd8b;
$custom-light: #f6feaf;
$custom-dark: #000000;

JSON

{
  "hex": "#effd8b",
  "rgb": {
    "r": 239,
    "g": 253,
    "b": 139
  },
  "hsl": {
    "h": 67.368,
    "s": 96.61,
    "l": 76.863
  },
  "oklch": {
    "l": 0.95991,
    "c": 0.1393,
    "h": 114.8
  },
  "luminance": 0.90465
}

Semantic roles & 50–950 ramp

primary

#EFFD8B

secondary

#614FDD

accent

#00E61C

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFFD8B

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

Preview Lab → · Contrast checker → · Palette generator →