#EFCC54#EFCC54

#EFCC54 is a very light, vivid yellow. Relative luminance 0.622; OKLCH L 85.3% C 0.142 H 92.8°. Best body text is #000000 at 13.44:1 contrast (WCAG AA passes).

Color values

HEX	#EFCC54
RGB	rgb(239, 204, 84)
HSL	hsl(46, 83%, 63%)
HSV	hsv(46, 65%, 94%)
CMYK	cmyk(0%, 14.6%, 64.9%, 6.3%)
CIE-LAB	lab(83.01, -0.74, 62.40)
CIE-LCH	lch(83.01, 62.40, 90.68°)
OKLab	oklab(85.34% -0.0069 0.1416)
OKLCH	oklch(85.34% 0.142 92.8)
XYZ	xyz(58.7926, 62.1797, 17.2909)
Luminance	0.6218 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCC54 #5477EF

analogous

#EF7E54 #EFCC54 #C4EF54

triadic

#EFCC54 #54EFCC #CC54EF

tetradic

#EFCC54 #54EF7E #5477EF #EF54C4

square

#EFCC54 #54EF7E #5477EF #EF54C4

split-complementary

#EFCC54 #54C4EF #7E54EF

monochromatic

#B79211 #EABB1C #EFCC54 #F4DD8C #F9EDC4

Accessibility & contrast

On white

1.56

#EFCC54 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.44

#EFCC54 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCC54

13.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCC54	#FFFFFF	#000000	##000000
##EFCC54	1.00	1.56	13.44	13.44
#FFFFFF	1.56	1.00	21.00	21.00
#000000	13.44	21.00	1.00	1.00
##000000	13.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C946

Deuteranopia (green-blind)

#E9D35A

Tritanopia (blue-blind)

#FFBDB3

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #efcc54;
/* rgb */ color: rgb(239, 204, 84);
/* oklch */ color: oklch(85.3% 0.142 92.8);

Tailwind

colors: {
  custom: {
    50: '#f8db89',
    500: '#efcc54',
    950: '#000000',
  },
}

SCSS

$custom: #efcc54;
$custom-light: #f8db89;
$custom-dark: #000000;

JSON

{
  "hex": "#efcc54",
  "rgb": {
    "r": 239,
    "g": 204,
    "b": 84
  },
  "hsl": {
    "h": 46.452,
    "s": 82.888,
    "l": 63.333
  },
  "oklch": {
    "l": 0.85336,
    "c": 0.14181,
    "h": 92.8
  },
  "luminance": 0.62177
}

Semantic roles & 50–950 ramp

primary

#EFCC54

secondary

#314FB7

accent

#37DF06

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCC54

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

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