#EFCF56#EFCF56

#EFCF56 is a very light, vivid yellow. Relative luminance 0.636; OKLCH L 86.0% C 0.142 H 94.3°. Best body text is #000000 at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#EFCF56
RGB	rgb(239, 207, 86)
HSL	hsl(47, 83%, 64%)
HSV	hsv(47, 64%, 94%)
CMYK	cmyk(0%, 13.4%, 64%, 6.3%)
CIE-LAB	lab(83.78, -2.16, 62.38)
CIE-LCH	lch(83.78, 62.42, 91.98°)
OKLab	oklab(85.95% -0.0108 0.1419)
OKLCH	oklch(85.95% 0.142 94.3)
XYZ	xyz(59.5919, 63.6513, 17.9494)
Luminance	0.6365 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCF56 #5676EF

analogous

#EF8256 #EFCF56 #C2EF56

triadic

#EFCF56 #56EFCF #CF56EF

tetradic

#EFCF56 #56EF82 #5676EF #EF56C2

square

#EFCF56 #56EF82 #5676EF #EF56C2

split-complementary

#EFCF56 #56C2EF #8256EF

monochromatic

#B99612 #EABF1E #EFCF56 #F4DF8E #FAEFC6

Accessibility & contrast

On white

1.53

#EFCF56 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.73

#EFCF56 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCF56

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCF56	#FFFFFF	#000000	##000000
##EFCF56	1.00	1.53	13.73	13.73
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.73	21.00	1.00	1.00
##000000	13.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3CB48

Deuteranopia (green-blind)

#EBD55C

Tritanopia (blue-blind)

#FFC0B5

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #efcf56;
/* rgb */ color: rgb(239, 207, 86);
/* oklch */ color: oklch(86.0% 0.142 94.3);

Tailwind

colors: {
  custom: {
    50: '#f8dd8b',
    500: '#efcf56',
    950: '#000000',
  },
}

SCSS

$custom: #efcf56;
$custom-light: #f8dd8b;
$custom-dark: #000000;

JSON

{
  "hex": "#efcf56",
  "rgb": {
    "r": 239,
    "g": 207,
    "b": 86
  },
  "hsl": {
    "h": 47.451,
    "s": 82.703,
    "l": 63.725
  },
  "oklch": {
    "l": 0.85954,
    "c": 0.14231,
    "h": 94.3
  },
  "luminance": 0.63648
}

Semantic roles & 50–950 ramp

primary

#EFCF56

secondary

#314DB8

accent

#34DF06

background

#FFFEFC

surface

#FFFCF4

border

#D7D5CE

text

#18150C

muted

#86847F

Preview Lab

Preview with #EFCF56

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

Preview Lab → · Contrast checker → · Palette generator →