#EFC83C#EFC83C

#EFC83C is a very light, vivid yellow. Relative luminance 0.600; OKLCH L 84.4% C 0.155 H 92.6°. Best body text is #000000 at 13.00:1 contrast (WCAG AA passes).

Color values

HEX	#EFC83C
RGB	rgb(239, 200, 60)
HSL	hsl(47, 85%, 59%)
HSV	hsv(47, 75%, 94%)
CMYK	cmyk(0%, 16.3%, 74.9%, 6.3%)
CIE-LAB	lab(81.83, 0.13, 70.58)
CIE-LCH	lch(81.83, 70.58, 89.90°)
OKLab	oklab(84.35% -0.0071 0.1548)
OKLCH	oklch(84.35% 0.155 92.6)
XYZ	xyz(57.0697, 59.9889, 12.8472)
Luminance	0.5999 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFC83C #3C63EF

analogous

#EF6E3C #EFC83C #BDEF3C

triadic

#EFC83C #3CEFC8 #C83CEF

tetradic

#EFC83C #3CEF6E #3C63EF #EF3CBD

square

#EFC83C #3CEF6E #3C63EF #EF3CBD

split-complementary

#EFC83C #3CBDEF #6E3CEF

monochromatic

#A3830D #DCB012 #EFC83C #F4D875 #F8E8AD

Accessibility & contrast

On white

1.62

#EFC83C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.00

#EFC83C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFC83C

13.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFC83C	#FFFFFF	#000000	##000000
##EFC83C	1.00	1.62	13.00	13.00
#FFFFFF	1.62	1.00	21.00	21.00
#000000	13.00	21.00	1.00	1.00
##000000	13.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC522

Deuteranopia (green-blind)

#E8D044

Tritanopia (blue-blind)

#FFB8AD

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #efc83c;
/* rgb */ color: rgb(239, 200, 60);
/* oklch */ color: oklch(84.4% 0.155 92.6);

Tailwind

colors: {
  custom: {
    50: '#f9d87c',
    500: '#efc83c',
    950: '#000000',
  },
}

SCSS

$custom: #efc83c;
$custom-light: #f9d87c;
$custom-dark: #000000;

JSON

{
  "hex": "#efc83c",
  "rgb": {
    "r": 239,
    "g": 200,
    "b": 60
  },
  "hsl": {
    "h": 46.927,
    "s": 84.834,
    "l": 58.627
  },
  "oklch": {
    "l": 0.84353,
    "c": 0.15495,
    "h": 92.6
  },
  "luminance": 0.59986
}

Semantic roles & 50–950 ramp

primary

#EFC83C

secondary

#2A45A5

accent

#5AFB2D

background

#FFFEFB

surface

#FFFBF2

border

#D7D4CC

text

#18140A

muted

#86837D

Preview Lab

Preview with #EFC83C

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

Preview Lab → · Contrast checker → · Palette generator →