#EFCB54#EFCB54

#EFCB54 is a very light, vivid yellow. Relative luminance 0.617; OKLCH L 85.1% C 0.141 H 92.2°. Best body text is #000000 at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#EFCB54
RGB	rgb(239, 203, 84)
HSL	hsl(46, 83%, 63%)
HSV	hsv(46, 65%, 94%)
CMYK	cmyk(0%, 15.1%, 64.9%, 6.3%)
CIE-LAB	lab(82.76, -0.23, 62.13)
CIE-LCH	lch(82.76, 62.13, 90.21°)
OKLab	oklab(85.14% -0.0054 0.1411)
OKLCH	oklch(85.14% 0.141 92.2)
XYZ	xyz(58.5557, 61.7059, 17.2120)
Luminance	0.6170 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCB54 #5478EF

analogous

#EF7D54 #EFCB54 #C5EF54

triadic

#EFCB54 #54EFCB #CB54EF

tetradic

#EFCB54 #54EF7D #5478EF #EF54C5

square

#EFCB54 #54EF7D #5478EF #EF54C5

split-complementary

#EFCB54 #54C5EF #7D54EF

monochromatic

#B79111 #EABA1C #EFCB54 #F4DC8C #F9EDC4

Accessibility & contrast

On white

1.57

#EFCB54 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.34

#EFCB54 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCB54

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCB54	#FFFFFF	#000000	##000000
##EFCB54	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)

#E0C846

Deuteranopia (green-blind)

#E8D25A

Tritanopia (blue-blind)

#FFBCB2

Achromatopsia (no color)

#CECECE

Design tokens & code

CSS

--color: #efcb54;
/* rgb */ color: rgb(239, 203, 84);
/* oklch */ color: oklch(85.1% 0.141 92.2);

Tailwind

colors: {
  custom: {
    50: '#f8da89',
    500: '#efcb54',
    950: '#000000',
  },
}

SCSS

$custom: #efcb54;
$custom-light: #f8da89;
$custom-dark: #000000;

JSON

{
  "hex": "#efcb54",
  "rgb": {
    "r": 239,
    "g": 203,
    "b": 84
  },
  "hsl": {
    "h": 46.065,
    "s": 82.888,
    "l": 63.333
  },
  "oklch": {
    "l": 0.85137,
    "c": 0.14118,
    "h": 92.2
  },
  "luminance": 0.61703
}

Semantic roles & 50–950 ramp

primary

#EFCB54

secondary

#3150B7

accent

#39DF06

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCB54

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

Preview Lab → · Contrast checker → · Palette generator →