#EFCC53#EFCC53

#EFCC53 is a very light, vivid yellow. Relative luminance 0.622; OKLCH L 85.3% C 0.143 H 92.9°. Best body text is #000000 at 13.43:1 contrast (WCAG AA passes).

Color values

HEX	#EFCC53
RGB	rgb(239, 204, 83)
HSL	hsl(47, 83%, 63%)
HSV	hsv(47, 65%, 94%)
CMYK	cmyk(0%, 14.6%, 65.3%, 6.3%)
CIE-LAB	lab(83.00, -0.80, 62.81)
CIE-LCH	lch(83.00, 62.82, 90.73°)
OKLab	oklab(85.33% -0.0072 0.1424)
OKLCH	oklch(85.33% 0.143 92.9)
XYZ	xyz(58.7537, 62.1642, 17.0861)
Luminance	0.6216 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCC53 #5376EF

analogous

#EF7E53 #EFCC53 #C4EF53

triadic

#EFCC53 #53EFCC #CC53EF

tetradic

#EFCC53 #53EF7E #5376EF #EF53C4

square

#EFCC53 #53EF7E #5376EF #EF53C4

split-complementary

#EFCC53 #53C4EF #7E53EF

monochromatic

#B79111 #EABB1B #EFCC53 #F4DD8B #F9EDC3

Accessibility & contrast

On white

1.56

#EFCC53 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.43

#EFCC53 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCC53

13.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCC53	#FFFFFF	#000000	##000000
##EFCC53	1.00	1.56	13.43	13.43
#FFFFFF	1.56	1.00	21.00	21.00
#000000	13.43	21.00	1.00	1.00
##000000	13.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1C944

Deuteranopia (green-blind)

#E9D359

Tritanopia (blue-blind)

#FFBDB2

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #efcc53;
/* rgb */ color: rgb(239, 204, 83);
/* oklch */ color: oklch(85.3% 0.143 92.9);

Tailwind

colors: {
  custom: {
    50: '#f8db89',
    500: '#efcc53',
    950: '#000000',
  },
}

SCSS

$custom: #efcc53;
$custom-light: #f8db89;
$custom-dark: #000000;

JSON

{
  "hex": "#efcc53",
  "rgb": {
    "r": 239,
    "g": 204,
    "b": 83
  },
  "hsl": {
    "h": 46.538,
    "s": 82.979,
    "l": 63.137
  },
  "oklch": {
    "l": 0.85327,
    "c": 0.14255,
    "h": 92.9
  },
  "luminance": 0.62161
}

Semantic roles & 50–950 ramp

primary

#EFCC53

secondary

#304EB6

accent

#37DF06

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCC53

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

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