#EFF77B#EFF77B

#EFF77B is a very light, vivid yellow. Relative luminance 0.863; OKLCH L 94.5% C 0.148 H 112.2°. Best body text is #000000 at 18.26:1 contrast (WCAG AA passes).

Color values

HEX	#EFF77B
RGB	rgb(239, 247, 123)
HSL	hsl(64, 89%, 73%)
HSV	hsv(64, 50%, 97%)
CMYK	cmyk(3.2%, 0%, 50.2%, 3.1%)
CIE-LAB	lab(94.44, -19.34, 58.03)
CIE-LCH	lch(94.44, 61.17, 108.43°)
OKLab	oklab(94.54% -0.0559 0.1369)
OKLCH	oklch(94.54% 0.148 112.2)
XYZ	xyz(72.4339, 86.3037, 31.5776)
Luminance	0.8630 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF77B #837BF7

analogous

#F7C17B #EFF77B #B1F77B

triadic

#EFF77B #7BEFF7 #F77BEF

tetradic

#EFF77B #7BF7C1 #837BF7 #F77BB1

square

#EFF77B #7BF7C1 #837BF7 #F77BB1

split-complementary

#EFF77B #7BB1F7 #C17BF7

monochromatic

#DBE90E #E8F441 #EFF77B #F6FAB5 #FCFDE2

Accessibility & contrast

On white

1.15

#EFF77B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.26

#EFF77B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF77B

18.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF77B	#FFFFFF	#000000	##000000
##EFF77B	1.00	1.15	18.26	18.26
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.26	21.00	1.00	1.00
##000000	18.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED6F

Deuteranopia (green-blind)

#FFF182

Tritanopia (blue-blind)

#FCEBDB

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #eff77b;
/* rgb */ color: rgb(239, 247, 123);
/* oklch */ color: oklch(94.5% 0.148 112.2);

Tailwind

colors: {
  custom: {
    50: '#f6f9a4',
    500: '#eff77b',
    950: '#000000',
  },
}

SCSS

$custom: #eff77b;
$custom-light: #f6f9a4;
$custom-dark: #000000;

JSON

{
  "hex": "#eff77b",
  "rgb": {
    "r": 239,
    "g": 247,
    "b": 123
  },
  "hsl": {
    "h": 63.871,
    "s": 88.571,
    "l": 72.549
  },
  "oklch": {
    "l": 0.94537,
    "c": 0.14782,
    "h": 112.2
  },
  "luminance": 0.86302
}

Semantic roles & 50–950 ramp

primary

#EFF77B

secondary

#4D43D3

accent

#00E50F

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF77B

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

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