#EFF391#EFF391

#EFF391 is a very light, vivid yellow. Relative luminance 0.845; OKLCH L 94.0% C 0.121 H 110.5°. Best body text is #000000 at 17.90:1 contrast (WCAG AA passes).

Color values

HEX	#EFF391
RGB	rgb(239, 243, 145)
HSL	hsl(62, 80%, 76%)
HSV	hsv(62, 40%, 95%)
CMYK	cmyk(1.6%, 0%, 40.3%, 4.7%)
CIE-LAB	lab(93.67, -15.31, 46.73)
CIE-LCH	lch(93.67, 49.17, 108.14°)
OKLab	oklab(94% -0.0425 0.1134)
OKLCH	oklch(94% 0.121 110.5)
XYZ	xyz(72.7590, 84.4975, 39.2594)
Luminance	0.8450 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF391 #9591F3

analogous

#F3C691 #EFF391 #BEF391

triadic

#EFF391 #91EFF3 #F391EF

tetradic

#EFF391 #91F3C6 #9591F3 #F391BE

square

#EFF391 #91F3C6 #9591F3 #F391BE

split-complementary

#EFF391 #91BEF3 #C691F3

monochromatic

#DFE723 #E7ED5A #EFF391 #F7F9C8 #FBFCE3

Accessibility & contrast

On white

1.17

#EFF391 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.90

#EFF391 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF391

17.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF391	#FFFFFF	#000000	##000000
##EFF391	1.00	1.17	17.90	17.90
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.90	21.00	1.00	1.00
##000000	17.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB89

Deuteranopia (green-blind)

#FFEE95

Tritanopia (blue-blind)

#FBE8DB

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff391;
/* rgb */ color: rgb(239, 243, 145);
/* oklch */ color: oklch(94.0% 0.121 110.5);

Tailwind

colors: {
  custom: {
    50: '#f6f7b2',
    500: '#eff391',
    950: '#000000',
  },
}

SCSS

$custom: #eff391;
$custom-light: #f6f7b2;
$custom-dark: #000000;

JSON

{
  "hex": "#eff391",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 145
  },
  "hsl": {
    "h": 62.449,
    "s": 80.328,
    "l": 76.078
  },
  "oklch": {
    "l": 0.94004,
    "c": 0.12105,
    "h": 110.5
  },
  "luminance": 0.84496
}

Semantic roles & 50–950 ramp

primary

#EFF391

secondary

#5D58D0

accent

#09DD11

background

#FFFFFD

surface

#FFFEF8

border

#D7D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFF391

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

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