#EFCC58#EFCC58

#EFCC58 is a very light, vivid yellow. Relative luminance 0.622; OKLCH L 85.4% C 0.139 H 92.4°. Best body text is #000000 at 13.45:1 contrast (WCAG AA passes).

Color values

HEX	#EFCC58
RGB	rgb(239, 204, 88)
HSL	hsl(46, 83%, 64%)
HSV	hsv(46, 63%, 94%)
CMYK	cmyk(0%, 14.6%, 63.2%, 6.3%)
CIE-LAB	lab(83.04, -0.50, 60.71)
CIE-LCH	lch(83.04, 60.72, 90.47°)
OKLab	oklab(85.37% -0.0058 0.1387)
OKLCH	oklch(85.37% 0.139 92.4)
XYZ	xyz(58.9537, 62.2442, 18.1397)
Luminance	0.6224 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCC58 #587BEF

analogous

#EF8158 #EFCC58 #C6EF58

triadic

#EFCC58 #58EFCC #CC58EF

tetradic

#EFCC58 #58EF81 #587BEF #EF58C6

square

#EFCC58 #58EF81 #587BEF #EF58C6

split-complementary

#EFCC58 #58C6EF #8158EF

monochromatic

#BB9412 #EABB20 #EFCC58 #F4DD90 #FAEEC8

Accessibility & contrast

On white

1.56

#EFCC58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.45

#EFCC58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCC58

13.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCC58	#FFFFFF	#000000	##000000
##EFCC58	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)

#E0C94B

Deuteranopia (green-blind)

#E9D35D

Tritanopia (blue-blind)

#FFBDB3

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #efcc58;
/* rgb */ color: rgb(239, 204, 88);
/* oklch */ color: oklch(85.4% 0.139 92.4);

Tailwind

colors: {
  custom: {
    50: '#f8db8c',
    500: '#efcc58',
    950: '#000000',
  },
}

SCSS

$custom: #efcc58;
$custom-light: #f8db8c;
$custom-dark: #000000;

JSON

{
  "hex": "#efcc58",
  "rgb": {
    "r": 239,
    "g": 204,
    "b": 88
  },
  "hsl": {
    "h": 46.093,
    "s": 82.514,
    "l": 64.118
  },
  "oklch": {
    "l": 0.85374,
    "c": 0.13877,
    "h": 92.4
  },
  "luminance": 0.62241
}

Semantic roles & 50–950 ramp

primary

#EFCC58

secondary

#3251BA

accent

#39DF07

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCC58

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

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