#EFEF65#EFEF65

#EFEF65 is a very light, vivid yellow. Relative luminance 0.810; OKLCH L 92.6% C 0.158 H 109.1°. Best body text is #000000 at 17.20:1 contrast (WCAG AA passes).

Color values

HEX	#EFEF65
RGB	rgb(239, 239, 101)
HSL	hsl(60, 81%, 67%)
HSV	hsv(60, 58%, 94%)
CMYK	cmyk(0%, 0%, 57.7%, 6.3%)
CIE-LAB	lab(92.14, -17.16, 65.10)
CIE-LCH	lch(92.14, 67.32, 104.77°)
OKLab	oklab(92.63% -0.0519 0.1497)
OKLCH	oklch(92.63% 0.158 109.1)
XYZ	xyz(68.8141, 81.0252, 24.3239)
Luminance	0.8102 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEF65 #6565EF

analogous

#EFAA65 #EFEF65 #AAEF65

triadic

#EFEF65 #65EFEF #EF65EF

tetradic

#EFEF65 #65EFAA #6565EF #EF65AA

square

#EFEF65 #65EFAA #6565EF #EF65AA

split-complementary

#EFEF65 #65AAEF #AA65EF

monochromatic

#C5C514 #E9E92E #EFEF65 #F5F59C #FBFBD4

Accessibility & contrast

On white

1.22

#EFEF65 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.20

#EFEF65 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEF65

17.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEF65	#FFFFFF	#000000	##000000
##EFEF65	1.00	1.22	17.20	17.20
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.20	21.00	1.00	1.00
##000000	17.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE656

Deuteranopia (green-blind)

#FFEB6D

Tritanopia (blue-blind)

#FEE1D1

Achromatopsia (no color)

#E8E8E8

Design tokens & code

CSS

--color: #efef65;
/* rgb */ color: rgb(239, 239, 101);
/* oklch */ color: oklch(92.6% 0.158 109.1);

Tailwind

colors: {
  custom: {
    50: '#f7f496',
    500: '#efef65',
    950: '#000000',
  },
}

SCSS

$custom: #efef65;
$custom-light: #f7f496;
$custom-dark: #000000;

JSON

{
  "hex": "#efef65",
  "rgb": {
    "r": 239,
    "g": 239,
    "b": 101
  },
  "hsl": {
    "h": 60,
    "s": 81.176,
    "l": 66.667
  },
  "oklch": {
    "l": 0.92633,
    "c": 0.15845,
    "h": 109.1
  },
  "luminance": 0.81023
}

Semantic roles & 50–950 ramp

primary

#EFEF65

secondary

#3636C3

accent

#08DE08

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFEF65

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

Preview Lab → · Contrast checker → · Palette generator →