#EFCC57#EFCC57

#EFCC57 is a very light, vivid yellow. Relative luminance 0.622; OKLCH L 85.4% C 0.140 H 92.5°. Best body text is #000000 at 13.45:1 contrast (WCAG AA passes).

Color values

HEX	#EFCC57
RGB	rgb(239, 204, 87)
HSL	hsl(46, 83%, 64%)
HSV	hsv(46, 64%, 94%)
CMYK	cmyk(0%, 14.6%, 63.6%, 6.3%)
CIE-LAB	lab(83.03, -0.56, 61.14)
CIE-LCH	lch(83.03, 61.14, 90.53°)
OKLab	oklab(85.36% -0.006 0.1394)
OKLCH	oklch(85.36% 0.14 92.5)
XYZ	xyz(58.9126, 62.2277, 17.9231)
Luminance	0.6222 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCC57 #577AEF

analogous

#EF8057 #EFCC57 #C6EF57

triadic

#EFCC57 #57EFCC #CC57EF

tetradic

#EFCC57 #57EF80 #577AEF #EF57C6

square

#EFCC57 #57EF80 #577AEF #EF57C6

split-complementary

#EFCC57 #57C6EF #8057EF

monochromatic

#BA9312 #EABB1F #EFCC57 #F4DD8F #FAEEC7

Accessibility & contrast

On white

1.56

#EFCC57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.45

#EFCC57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCC57

13.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCC57	#FFFFFF	#000000	##000000
##EFCC57	1.00	1.56	13.45	13.45
#FFFFFF	1.56	1.00	21.00	21.00
#000000	13.45	21.00	1.00	1.00
##000000	13.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C94A

Deuteranopia (green-blind)

#E9D35C

Tritanopia (blue-blind)

#FFBDB3

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #efcc57;
/* rgb */ color: rgb(239, 204, 87);
/* oklch */ color: oklch(85.4% 0.140 92.5);

Tailwind

colors: {
  custom: {
    50: '#f8db8b',
    500: '#efcc57',
    950: '#000000',
  },
}

SCSS

$custom: #efcc57;
$custom-light: #f8db8b;
$custom-dark: #000000;

JSON

{
  "hex": "#efcc57",
  "rgb": {
    "r": 239,
    "g": 204,
    "b": 87
  },
  "hsl": {
    "h": 46.184,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.85364,
    "c": 0.13954,
    "h": 92.5
  },
  "luminance": 0.62225
}

Semantic roles & 50–950 ramp

primary

#EFCC57

secondary

#3151B9

accent

#38DF06

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCC57

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

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