#EFCF63#EFCF63

#EFCF63 is a very light, vivid yellow. Relative luminance 0.639; OKLCH L 86.1% C 0.132 H 93.0°. Best body text is #000000 at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#EFCF63
RGB	rgb(239, 207, 99)
HSL	hsl(46, 81%, 66%)
HSV	hsv(46, 59%, 94%)
CMYK	cmyk(0%, 13.4%, 58.6%, 6.3%)
CIE-LAB	lab(83.90, -1.31, 56.76)
CIE-LCH	lch(83.90, 56.78, 91.32°)
OKLab	oklab(86.09% -0.0068 0.1316)
OKLCH	oklch(86.09% 0.132 93)
XYZ	xyz(60.1642, 63.8802, 20.9630)
Luminance	0.6388 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCF63 #6383EF

analogous

#EF8963 #EFCF63 #C9EF63

triadic

#EFCF63 #63EFCF #CF63EF

tetradic

#EFCF63 #63EF89 #6383EF #EF63C9

square

#EFCF63 #63EF89 #6383EF #EF63C9

split-complementary

#EFCF63 #63C9EF #8963EF

monochromatic

#C49B14 #E9BE2B #EFCF63 #F5E09B #FAF1D2

Accessibility & contrast

On white

1.52

#EFCF63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.78

#EFCF63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCF63

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCF63	#FFFFFF	#000000	##000000
##EFCF63	1.00	1.52	13.78	13.78
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.78	21.00	1.00	1.00
##000000	13.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2CC58

Deuteranopia (green-blind)

#EAD568

Tritanopia (blue-blind)

#FFC1B7

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #efcf63;
/* rgb */ color: rgb(239, 207, 99);
/* oklch */ color: oklch(86.1% 0.132 93.0);

Tailwind

colors: {
  custom: {
    50: '#f7dd93',
    500: '#efcf63',
    950: '#000000',
  },
}

SCSS

$custom: #efcf63;
$custom-light: #f7dd93;
$custom-dark: #000000;

JSON

{
  "hex": "#efcf63",
  "rgb": {
    "r": 239,
    "g": 207,
    "b": 99
  },
  "hsl": {
    "h": 46.286,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.86087,
    "c": 0.13181,
    "h": 93
  },
  "luminance": 0.63877
}

Semantic roles & 50–950 ramp

primary

#EFCF63

secondary

#3555C1

accent

#39DE08

background

#FFFEFC

surface

#FFFCF4

border

#D7D5CE

text

#18150D

muted

#86847F

Preview Lab

Preview with #EFCF63

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

Preview Lab → · Contrast checker → · Palette generator →