#EFCB53#EFCB53

#EFCB53 is a very light, vivid yellow. Relative luminance 0.617; OKLCH L 85.1% C 0.142 H 92.3°. Best body text is #000000 at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#EFCB53
RGB	rgb(239, 203, 83)
HSL	hsl(46, 83%, 63%)
HSV	hsv(46, 65%, 94%)
CMYK	cmyk(0%, 15.1%, 65.3%, 6.3%)
CIE-LAB	lab(82.75, -0.29, 62.55)
CIE-LCH	lch(82.75, 62.55, 90.26°)
OKLab	oklab(85.13% -0.0057 0.1418)
OKLCH	oklch(85.13% 0.142 92.3)
XYZ	xyz(58.5168, 61.6903, 17.0072)
Luminance	0.6169 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCB53 #5377EF

analogous

#EF7D53 #EFCB53 #C5EF53

triadic

#EFCB53 #53EFCB #CB53EF

tetradic

#EFCB53 #53EF7D #5377EF #EF53C5

square

#EFCB53 #53EF7D #5377EF #EF53C5

split-complementary

#EFCB53 #53C5EF #7D53EF

monochromatic

#B79011 #EABA1B #EFCB53 #F4DC8B #F9EDC3

Accessibility & contrast

On white

1.57

#EFCB53 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.34

#EFCB53 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCB53

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCB53	#FFFFFF	#000000	##000000
##EFCB53	1.00	1.57	13.34	13.34
#FFFFFF	1.57	1.00	21.00	21.00
#000000	13.34	21.00	1.00	1.00
##000000	13.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C845

Deuteranopia (green-blind)

#E9D259

Tritanopia (blue-blind)

#FFBCB2

Achromatopsia (no color)

#CECECE

Design tokens & code

CSS

--color: #efcb53;
/* rgb */ color: rgb(239, 203, 83);
/* oklch */ color: oklch(85.1% 0.142 92.3);

Tailwind

colors: {
  custom: {
    50: '#f8da89',
    500: '#efcb53',
    950: '#000000',
  },
}

SCSS

$custom: #efcb53;
$custom-light: #f8da89;
$custom-dark: #000000;

JSON

{
  "hex": "#efcb53",
  "rgb": {
    "r": 239,
    "g": 203,
    "b": 83
  },
  "hsl": {
    "h": 46.154,
    "s": 82.979,
    "l": 63.137
  },
  "oklch": {
    "l": 0.85128,
    "c": 0.14192,
    "h": 92.3
  },
  "luminance": 0.61687
}

Semantic roles & 50–950 ramp

primary

#EFCB53

secondary

#304FB6

accent

#38DF06

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCB53

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

Preview Lab → · Contrast checker → · Palette generator →