#EFCB59#EFCB59

#EFCB59 is a very light, vivid yellow. Relative luminance 0.618; OKLCH L 85.2% C 0.137 H 91.7°. Best body text is #000000 at 13.36:1 contrast (WCAG AA passes).

Color values

HEX	#EFCB59
RGB	rgb(239, 203, 89)
HSL	hsl(46, 82%, 64%)
HSV	hsv(46, 63%, 94%)
CMYK	cmyk(0%, 15.1%, 62.8%, 6.3%)
CIE-LAB	lab(82.80, 0.08, 60.01)
CIE-LCH	lch(82.80, 60.01, 89.93°)
OKLab	oklab(85.19% -0.004 0.1373)
OKLCH	oklch(85.19% 0.137 91.7)
XYZ	xyz(58.7585, 61.7871, 18.2804)
Luminance	0.6178 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCB59 #597DEF

analogous

#EF8059 #EFCB59 #C8EF59

triadic

#EFCB59 #59EFCB #CB59EF

tetradic

#EFCB59 #59EF80 #597DEF #EF59C8

square

#EFCB59 #59EF80 #597DEF #EF59C8

split-complementary

#EFCB59 #59C8EF #8059EF

monochromatic

#BC9312 #EABA21 #EFCB59 #F4DC91 #FAEEC9

Accessibility & contrast

On white

1.57

#EFCB59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.36

#EFCB59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCB59

13.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCB59	#FFFFFF	#000000	##000000
##EFCB59	1.00	1.57	13.36	13.36
#FFFFFF	1.57	1.00	21.00	21.00
#000000	13.36	21.00	1.00	1.00
##000000	13.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC84C

Deuteranopia (green-blind)

#E8D35E

Tritanopia (blue-blind)

#FFBCB2

Achromatopsia (no color)

#CECECE

Design tokens & code

CSS

--color: #efcb59;
/* rgb */ color: rgb(239, 203, 89);
/* oklch */ color: oklch(85.2% 0.137 91.7);

Tailwind

colors: {
  custom: {
    50: '#f8da8c',
    500: '#efcb59',
    950: '#000000',
  },
}

SCSS

$custom: #efcb59;
$custom-light: #f8da8c;
$custom-dark: #000000;

JSON

{
  "hex": "#efcb59",
  "rgb": {
    "r": 239,
    "g": 203,
    "b": 89
  },
  "hsl": {
    "h": 45.6,
    "s": 82.418,
    "l": 64.314
  },
  "oklch": {
    "l": 0.85185,
    "c": 0.13736,
    "h": 91.7
  },
  "luminance": 0.61784
}

Semantic roles & 50–950 ramp

primary

#EFCB59

secondary

#3253BA

accent

#3BDF07

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCB59

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

Preview Lab → · Contrast checker → · Palette generator →