#EFC73C#EFC73C

#EFC73C is a very light, vivid yellow. Relative luminance 0.595; OKLCH L 84.2% C 0.154 H 92.1°. Best body text is #000000 at 12.90:1 contrast (WCAG AA passes).

Color values

HEX	#EFC73C
RGB	rgb(239, 199, 60)
HSL	hsl(47, 85%, 59%)
HSV	hsv(47, 75%, 94%)
CMYK	cmyk(0%, 16.7%, 74.9%, 6.3%)
CIE-LAB	lab(81.58, 0.64, 70.34)
CIE-LCH	lch(81.58, 70.35, 89.48°)
OKLab	oklab(84.15% -0.0056 0.1543)
OKLCH	oklch(84.15% 0.154 92.1)
XYZ	xyz(56.8389, 59.5273, 12.7702)
Luminance	0.5952 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFC73C #3C64EF

analogous

#EF6D3C #EFC73C #BDEF3C

triadic

#EFC73C #3CEFC7 #C73CEF

tetradic

#EFC73C #3CEF6D #3C64EF #EF3CBD

square

#EFC73C #3CEF6D #3C64EF #EF3CBD

split-complementary

#EFC73C #3CBDEF #6D3CEF

monochromatic

#A3820D #DCAF12 #EFC73C #F4D775 #F8E7AD

Accessibility & contrast

On white

1.63

#EFC73C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.90

#EFC73C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFC73C

12.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFC73C	#FFFFFF	#000000	##000000
##EFC73C	1.00	1.63	12.90	12.90
#FFFFFF	1.63	1.00	21.00	21.00
#000000	12.90	21.00	1.00	1.00
##000000	12.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC423

Deuteranopia (green-blind)

#E7D044

Tritanopia (blue-blind)

#FFB6AC

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #efc73c;
/* rgb */ color: rgb(239, 199, 60);
/* oklch */ color: oklch(84.2% 0.154 92.1);

Tailwind

colors: {
  custom: {
    50: '#f9d77b',
    500: '#efc73c',
    950: '#000000',
  },
}

SCSS

$custom: #efc73c;
$custom-light: #f9d77b;
$custom-dark: #000000;

JSON

{
  "hex": "#efc73c",
  "rgb": {
    "r": 239,
    "g": 199,
    "b": 60
  },
  "hsl": {
    "h": 46.592,
    "s": 84.834,
    "l": 58.627
  },
  "oklch": {
    "l": 0.84154,
    "c": 0.15439,
    "h": 92.1
  },
  "luminance": 0.59524
}

Semantic roles & 50–950 ramp

primary

#EFC73C

secondary

#2A46A5

accent

#5BFB2D

background

#FFFEFB

surface

#FFFBF2

border

#D7D4CC

text

#18140A

muted

#86837D

Preview Lab

Preview with #EFC73C

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

Preview Lab → · Contrast checker → · Palette generator →