#EFFD6B#EFFD6B

#EFFD6B is a very light, vivid yellow. Relative luminance 0.897; OKLCH L 95.6% C 0.169 H 114.2°. Best body text is #000000 at 18.93:1 contrast (WCAG AA passes).

Color values

HEX	#EFFD6B
RGB	rgb(239, 253, 107)
HSL	hsl(66, 97%, 71%)
HSV	hsv(66, 58%, 99%)
CMYK	cmyk(5.5%, 0%, 57.7%, 0.8%)
CIE-LAB	lab(95.86, -23.46, 66.67)
CIE-LCH	lch(95.86, 70.68, 109.39°)
OKLab	oklab(95.62% -0.0691 0.1538)
OKLCH	oklch(95.62% 0.169 114.2)
XYZ	xyz(73.3773, 89.6640, 27.3485)
Luminance	0.8966 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFD6B #796BFD

analogous

#FDC26B #EFFD6B #A6FD6B

triadic

#EFFD6B #6BEFFD #FD6BEF

tetradic

#EFFD6B #6BFDC2 #796BFD #FD6BA6

square

#EFFD6B #6BFDC2 #796BFD #FD6BA6

split-complementary

#EFFD6B #6BA6FD #C26BFD

monochromatic

#D4EA03 #E8FC2F #EFFD6B #F6FEA7 #FCFFE1

Accessibility & contrast

On white

1.11

#EFFD6B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.93

#EFFD6B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFD6B

18.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFD6B	#FFFFFF	#000000	##000000
##EFFD6B	1.00	1.11	18.93	18.93
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.93	21.00	1.00	1.00
##000000	18.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF25B

Deuteranopia (green-blind)

#FFF574

Tritanopia (blue-blind)

#FDF0DE

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effd6b;
/* rgb */ color: rgb(239, 253, 107);
/* oklch */ color: oklch(95.6% 0.169 114.2);

Tailwind

colors: {
  custom: {
    50: '#f7fe9a',
    500: '#effd6b',
    950: '#000000',
  },
}

SCSS

$custom: #effd6b;
$custom-light: #f7fe9a;
$custom-dark: #000000;

JSON

{
  "hex": "#effd6b",
  "rgb": {
    "r": 239,
    "g": 253,
    "b": 107
  },
  "hsl": {
    "h": 65.753,
    "s": 97.333,
    "l": 70.588
  },
  "oklch": {
    "l": 0.95618,
    "c": 0.16858,
    "h": 114.2
  },
  "luminance": 0.89663
}

Semantic roles & 50–950 ramp

primary

#EFFD6B

secondary

#4434D8

accent

#00E616

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFFD6B

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

Preview Lab → · Contrast checker → · Palette generator →