#EFE663#EFE663

#EFE663 is a very light, vivid yellow. Relative luminance 0.758; OKLCH L 90.8% C 0.151 H 105.4°. Best body text is #000000 at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#EFE663
RGB	rgb(239, 230, 99)
HSL	hsl(56, 81%, 66%)
HSV	hsv(56, 59%, 94%)
CMYK	cmyk(0%, 3.8%, 58.6%, 6.3%)
CIE-LAB	lab(89.79, -12.89, 63.36)
CIE-LCH	lch(89.79, 64.65, 101.50°)
OKLab	oklab(90.75% -0.04 0.1457)
OKLCH	oklch(90.75% 0.151 105.4)
XYZ	xyz(66.1477, 75.8474, 22.9576)
Luminance	0.7584 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFE663 #636CEF

analogous

#EFA063 #EFE663 #B2EF63

triadic

#EFE663 #63EFE6 #E663EF

tetradic

#EFE663 #63EFA0 #636CEF #EF63B2

square

#EFE663 #63EFA0 #636CEF #EF63B2

split-complementary

#EFE663 #63B2EF #A063EF

monochromatic

#C4B814 #E9DD2B #EFE663 #F5EF9B #FAF8D2

Accessibility & contrast

On white

1.30

#EFE663 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.17

#EFE663 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFE663

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFE663	#FFFFFF	#000000	##000000
##EFE663	1.00	1.30	16.17	16.17
#FFFFFF	1.30	1.00	21.00	21.00
#000000	16.17	21.00	1.00	1.00
##000000	16.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F8DE55

Deuteranopia (green-blind)

#FCE56A

Tritanopia (blue-blind)

#FFD8CA

Achromatopsia (no color)

#E2E2E2

Design tokens & code

CSS

--color: #efe663;
/* rgb */ color: rgb(239, 230, 99);
/* oklch */ color: oklch(90.8% 0.151 105.4);

Tailwind

colors: {
  custom: {
    50: '#f7ed94',
    500: '#efe663',
    950: '#000000',
  },
}

SCSS

$custom: #efe663;
$custom-light: #f7ed94;
$custom-dark: #000000;

JSON

{
  "hex": "#efe663",
  "rgb": {
    "r": 239,
    "g": 230,
    "b": 99
  },
  "hsl": {
    "h": 56.143,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.90752,
    "c": 0.15113,
    "h": 105.4
  },
  "luminance": 0.75845
}

Semantic roles & 50–950 ramp

primary

#EFE663

secondary

#353EC1

accent

#15DE08

background

#FFFEFC

surface

#FFFDF5

border

#D7D5CF

text

#18160D

muted

#86847F

Preview Lab

Preview with #EFE663

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

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