#EFCF53#EFCF53

#EFCF53 is a very light, vivid yellow. Relative luminance 0.636; OKLCH L 85.9% C 0.145 H 94.6°. Best body text is #000000 at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#EFCF53
RGB	rgb(239, 207, 83)
HSL	hsl(48, 83%, 63%)
HSV	hsv(48, 65%, 94%)
CMYK	cmyk(0%, 13.4%, 65.3%, 6.3%)
CIE-LAB	lab(83.76, -2.34, 63.62)
CIE-LCH	lch(83.76, 63.66, 92.10°)
OKLab	oklab(85.93% -0.0116 0.1441)
OKLCH	oklch(85.93% 0.145 94.6)
XYZ	xyz(59.4736, 63.6040, 17.3261)
Luminance	0.6360 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCF53 #5373EF

analogous

#EF8153 #EFCF53 #C1EF53

triadic

#EFCF53 #53EFCF #CF53EF

tetradic

#EFCF53 #53EF81 #5373EF #EF53C1

square

#EFCF53 #53EF81 #5373EF #EF53C1

split-complementary

#EFCF53 #53C1EF #8153EF

monochromatic

#B79511 #EABF1B #EFCF53 #F4DF8B #F9EEC3

Accessibility & contrast

On white

1.53

#EFCF53 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.72

#EFCF53 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCF53

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCF53	#FFFFFF	#000000	##000000
##EFCF53	1.00	1.53	13.72	13.72
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.72	21.00	1.00	1.00
##000000	13.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3CB44

Deuteranopia (green-blind)

#EBD559

Tritanopia (blue-blind)

#FFC0B5

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #efcf53;
/* rgb */ color: rgb(239, 207, 83);
/* oklch */ color: oklch(85.9% 0.145 94.6);

Tailwind

colors: {
  custom: {
    50: '#f8dd89',
    500: '#efcf53',
    950: '#000000',
  },
}

SCSS

$custom: #efcf53;
$custom-light: #f8dd89;
$custom-dark: #000000;

JSON

{
  "hex": "#efcf53",
  "rgb": {
    "r": 239,
    "g": 207,
    "b": 83
  },
  "hsl": {
    "h": 47.692,
    "s": 82.979,
    "l": 63.137
  },
  "oklch": {
    "l": 0.85926,
    "c": 0.14455,
    "h": 94.6
  },
  "luminance": 0.63601
}

Semantic roles & 50–950 ramp

primary

#EFCF53

secondary

#304CB6

accent

#33DF06

background

#FFFEFC

surface

#FFFCF4

border

#D7D5CE

text

#18150C

muted

#86847F

Preview Lab

Preview with #EFCF53

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

Preview Lab → · Contrast checker → · Palette generator →