#EFE963#EFE963

#EFE963 is a very light, vivid yellow. Relative luminance 0.775; OKLCH L 91.4% C 0.154 H 106.7°. Best body text is #000000 at 16.51:1 contrast (WCAG AA passes).

Color values

HEX	#EFE963
RGB	rgb(239, 233, 99)
HSL	hsl(57, 81%, 66%)
HSV	hsv(57, 59%, 94%)
CMYK	cmyk(0%, 2.5%, 58.6%, 6.3%)
CIE-LAB	lab(90.57, -14.37, 64.21)
CIE-LCH	lch(90.57, 65.80, 102.61°)
OKLab	oklab(91.37% -0.0442 0.1476)
OKLCH	oklch(91.37% 0.154 106.7)
XYZ	xyz(66.9898, 77.5315, 23.2383)
Luminance	0.7753 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFE963 #6369EF

analogous

#EFA363 #EFE963 #AFEF63

triadic

#EFE963 #63EFE9 #E963EF

tetradic

#EFE963 #63EFA3 #6369EF #EF63AF

square

#EFE963 #63EFA3 #6369EF #EF63AF

split-complementary

#EFE963 #63AFEF #A363EF

monochromatic

#C4BC14 #E9E12B #EFE963 #F5F19B #FAF9D2

Accessibility & contrast

On white

1.27

#EFE963 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.51

#EFE963 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFE963

16.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFE963	#FFFFFF	#000000	##000000
##EFE963	1.00	1.27	16.51	16.51
#FFFFFF	1.27	1.00	21.00	21.00
#000000	16.51	21.00	1.00	1.00
##000000	16.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FBE154

Deuteranopia (green-blind)

#FEE76B

Tritanopia (blue-blind)

#FFDBCC

Achromatopsia (no color)

#E4E4E4

Design tokens & code

CSS

--color: #efe963;
/* rgb */ color: rgb(239, 233, 99);
/* oklch */ color: oklch(91.4% 0.154 106.7);

Tailwind

colors: {
  custom: {
    50: '#f7ef94',
    500: '#efe963',
    950: '#000000',
  },
}

SCSS

$custom: #efe963;
$custom-light: #f7ef94;
$custom-dark: #000000;

JSON

{
  "hex": "#efe963",
  "rgb": {
    "r": 239,
    "g": 233,
    "b": 99
  },
  "hsl": {
    "h": 57.429,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.91371,
    "c": 0.15404,
    "h": 106.7
  },
  "luminance": 0.77529
}

Semantic roles & 50–950 ramp

primary

#EFE963

secondary

#353BC1

accent

#11DE08

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18160E

muted

#86857F

Preview Lab

Preview with #EFE963

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

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