#EFF651#EFF651

#EFF651 is a very light, vivid yellow. Relative luminance 0.849; OKLCH L 93.9% C 0.180 H 111.8°. Best body text is #000000 at 17.97:1 contrast (WCAG AA passes).

Color values

HEX	#EFF651
RGB	rgb(239, 246, 81)
HSL	hsl(63, 90%, 64%)
HSV	hsv(63, 67%, 96%)
CMYK	cmyk(2.8%, 0%, 67.1%, 3.5%)
CIE-LAB	lab(93.82, -21.75, 74.77)
CIE-LCH	lch(93.82, 77.87, 106.22°)
OKLab	oklab(93.93% -0.0669 0.1673)
OKLCH	oklch(93.93% 0.18 111.8)
XYZ	xyz(70.0397, 84.8580, 20.4727)
Luminance	0.8486 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF651 #5851F6

analogous

#F6AA51 #EFF651 #9DF651

triadic

#EFF651 #51EFF6 #F651EF

tetradic

#EFF651 #51F6AA #5851F6 #F6519D

square

#EFF651 #51F6AA #5851F6 #F6519D

split-complementary

#EFF651 #519DF6 #AA51F6

monochromatic

#BBC30A #EAF317 #EFF651 #F4F98B #FAFCC5

Accessibility & contrast

On white

1.17

#EFF651 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.97

#EFF651 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF651

17.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF651	#FFFFFF	#000000	##000000
##EFF651	1.00	1.17	17.97	17.97
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.97	21.00	1.00	1.00
##000000	17.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB37

Deuteranopia (green-blind)

#FFEF5D

Tritanopia (blue-blind)

#FFE7D5

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff651;
/* rgb */ color: rgb(239, 246, 81);
/* oklch */ color: oklch(93.9% 0.180 111.8);

Tailwind

colors: {
  custom: {
    50: '#f8f98b',
    500: '#eff651',
    950: '#000000',
  },
}

SCSS

$custom: #eff651;
$custom-light: #f8f98b;
$custom-dark: #000000;

JSON

{
  "hex": "#eff651",
  "rgb": {
    "r": 239,
    "g": 246,
    "b": 81
  },
  "hsl": {
    "h": 62.545,
    "s": 90.164,
    "l": 64.118
  },
  "oklch": {
    "l": 0.93926,
    "c": 0.18017,
    "h": 111.8
  },
  "luminance": 0.84856
}

Semantic roles & 50–950 ramp

primary

#EFF651

secondary

#322BC0

accent

#00E60A

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF651

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

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