#EFF963#EFF963

#EFF963 is a very light, vivid yellow. Relative luminance 0.870; OKLCH L 94.7% C 0.171 H 112.8°. Best body text is #000000 at 18.40:1 contrast (WCAG AA passes).

Color values

HEX	#EFF963
RGB	rgb(239, 249, 99)
HSL	hsl(64, 93%, 68%)
HSV	hsv(64, 60%, 98%)
CMYK	cmyk(4%, 0%, 60.2%, 2.4%)
CIE-LAB	lab(94.74, -22.11, 68.76)
CIE-LCH	lch(94.74, 72.23, 107.83°)
OKLab	oklab(94.7% -0.0661 0.1572)
OKLCH	oklch(94.7% 0.171 112.8)
XYZ	xyz(71.7262, 87.0044, 24.8171)
Luminance	0.8700 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF963 #6D63F9

analogous

#F9B863 #EFF963 #A4F963

triadic

#EFF963 #63EFF9 #F963EF

tetradic

#EFF963 #63F9B8 #6D63F9 #F963A4

square

#EFF963 #63F9B8 #6D63F9 #F963A4

split-complementary

#EFF963 #63A4F9 #B863F9

monochromatic

#CBD908 #E9F728 #EFF963 #F5FB9E #FBFED9

Accessibility & contrast

On white

1.14

#EFF963 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.40

#EFF963 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF963

18.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF963	#FFFFFF	#000000	##000000
##EFF963	1.00	1.14	18.40	18.40
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.40	21.00	1.00	1.00
##000000	18.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE51

Deuteranopia (green-blind)

#FFF26C

Tritanopia (blue-blind)

#FEEBD9

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #eff963;
/* rgb */ color: rgb(239, 249, 99);
/* oklch */ color: oklch(94.7% 0.171 112.8);

Tailwind

colors: {
  custom: {
    50: '#f7fb95',
    500: '#eff963',
    950: '#000000',
  },
}

SCSS

$custom: #eff963;
$custom-light: #f7fb95;
$custom-dark: #000000;

JSON

{
  "hex": "#eff963",
  "rgb": {
    "r": 239,
    "g": 249,
    "b": 99
  },
  "hsl": {
    "h": 64,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.94702,
    "c": 0.17055,
    "h": 112.8
  },
  "luminance": 0.87003
}

Semantic roles & 50–950 ramp

primary

#EFF963

secondary

#392ED2

accent

#00E60F

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFF963

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

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