#EFCC59#EFCC59

#EFCC59 is a very light, vivid yellow. Relative luminance 0.623; OKLCH L 85.4% C 0.138 H 92.3°. Best body text is #000000 at 13.45:1 contrast (WCAG AA passes).

Color values

HEX	#EFCC59
RGB	rgb(239, 204, 89)
HSL	hsl(46, 82%, 64%)
HSV	hsv(46, 63%, 94%)
CMYK	cmyk(0%, 14.6%, 62.8%, 6.3%)
CIE-LAB	lab(83.05, -0.44, 60.29)
CIE-LCH	lch(83.05, 60.29, 90.42°)
OKLab	oklab(85.38% -0.0055 0.1379)
OKLCH	oklch(85.38% 0.138 92.3)
XYZ	xyz(58.9954, 62.2609, 18.3594)
Luminance	0.6226 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCC59 #597CEF

analogous

#EF8159 #EFCC59 #C7EF59

triadic

#EFCC59 #59EFCC #CC59EF

tetradic

#EFCC59 #59EF81 #597CEF #EF59C7

square

#EFCC59 #59EF81 #597CEF #EF59C7

split-complementary

#EFCC59 #59C7EF #8159EF

monochromatic

#BC9412 #EABB21 #EFCC59 #F4DD91 #FAEEC9

Accessibility & contrast

On white

1.56

#EFCC59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.45

#EFCC59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCC59

13.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCC59	#FFFFFF	#000000	##000000
##EFCC59	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)

#E0C94C

Deuteranopia (green-blind)

#E9D35E

Tritanopia (blue-blind)

#FFBDB3

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #efcc59;
/* rgb */ color: rgb(239, 204, 89);
/* oklch */ color: oklch(85.4% 0.138 92.3);

Tailwind

colors: {
  custom: {
    50: '#f8db8c',
    500: '#efcc59',
    950: '#000000',
  },
}

SCSS

$custom: #efcc59;
$custom-light: #f8db8c;
$custom-dark: #000000;

JSON

{
  "hex": "#efcc59",
  "rgb": {
    "r": 239,
    "g": 204,
    "b": 89
  },
  "hsl": {
    "h": 46,
    "s": 82.418,
    "l": 64.314
  },
  "oklch": {
    "l": 0.85384,
    "c": 0.13799,
    "h": 92.3
  },
  "luminance": 0.62258
}

Semantic roles & 50–950 ramp

primary

#EFCC59

secondary

#3252BA

accent

#39DF07

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCC59

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

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