#EFD010#EFD010

#EFD010 is a very light, vivid yellow. Relative luminance 0.635; OKLCH L 85.8% C 0.175 H 98.1°. Best body text is #000000 at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#EFD010
RGB	rgb(239, 208, 16)
HSL	hsl(52, 87%, 50%)
HSV	hsv(52, 93%, 94%)
CMYK	cmyk(0%, 13%, 93.3%, 6.3%)
CIE-LAB	lab(83.71, -5.06, 82.65)
CIE-LCH	lch(83.71, 82.80, 93.51°)
OKLab	oklab(85.79% -0.0247 0.1736)
OKLCH	oklch(85.79% 0.175 98.1)
XYZ	xyz(58.2493, 63.5031, 9.6793)
Luminance	0.6350 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFD010 #102FEF

analogous

#EF6010 #EFD010 #9FEF10

triadic

#EFD010 #10EFD0 #D010EF

tetradic

#EFD010 #10EF60 #102FEF #EF109F

square

#EFD010 #10EF60 #102FEF #EF109F

split-complementary

#EFD010 #109FEF #6010EF

monochromatic

#7C6C08 #B69E0C #EFD010 #F3DB49 #F7E783

Accessibility & contrast

On white

1.53

#EFD010 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.70

#EFD010 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFD010

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFD010	#FFFFFF	#000000	##000000
##EFD010	1.00	1.53	13.70	13.70
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.70	21.00	1.00	1.00
##000000	13.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E6CB00

Deuteranopia (green-blind)

#EED529

Tritanopia (blue-blind)

#FFBFB1

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #efd010;
/* rgb */ color: rgb(239, 208, 16);
/* oklch */ color: oklch(85.8% 0.175 98.1);

Tailwind

colors: {
  custom: {
    50: '#fadd6d',
    500: '#efd010',
    950: '#000000',
  },
}

SCSS

$custom: #efd010;
$custom-light: #fadd6d;
$custom-dark: #000000;

JSON

{
  "hex": "#efd010",
  "rgb": {
    "r": 239,
    "g": 208,
    "b": 16
  },
  "hsl": {
    "h": 51.659,
    "s": 87.451,
    "l": 50
  },
  "oklch": {
    "l": 0.85787,
    "c": 0.17531,
    "h": 98.1
  },
  "luminance": 0.635
}

Semantic roles & 50–950 ramp

primary

#EFD010

secondary

#202E84

accent

#48FE2A

background

#FFFEFB

surface

#FFFCF1

border

#D7D5CB

text

#181508

muted

#86847D

Preview Lab

Preview with #EFD010

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

Preview Lab → · Contrast checker → · Palette generator →