#EFEF6B#EFEF6B

#EFEF6B is a very light, vivid yellow. Relative luminance 0.811; OKLCH L 92.7% C 0.153 H 109.1°. Best body text is #000000 at 17.23:1 contrast (WCAG AA passes).

Color values

HEX	#EFEF6B
RGB	rgb(239, 239, 107)
HSL	hsl(60, 80%, 68%)
HSV	hsv(60, 55%, 94%)
CMYK	cmyk(0%, 0%, 55.2%, 6.3%)
CIE-LAB	lab(92.20, -16.74, 62.58)
CIE-LCH	lch(92.20, 64.78, 104.97°)
OKLab	oklab(92.69% -0.0501 0.145)
OKLCH	oklch(92.69% 0.153 109.1)
XYZ	xyz(69.1188, 81.1471, 25.9290)
Luminance	0.8115 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEF6B #6B6BEF

analogous

#EFAD6B #EFEF6B #ADEF6B

triadic

#EFEF6B #6BEFEF #EF6BEF

tetradic

#EFEF6B #6BEFAD #6B6BEF #EF6BAD

square

#EFEF6B #6BEFAD #6B6BEF #EF6BAD

split-complementary

#EFEF6B #6BADEF #AD6BEF

monochromatic

#CACA16 #E9E934 #EFEF6B #F5F5A2 #FBFBD9

Accessibility & contrast

On white

1.22

#EFEF6B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.23

#EFEF6B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEF6B

17.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEF6B	#FFFFFF	#000000	##000000
##EFEF6B	1.00	1.22	17.23	17.23
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.23	21.00	1.00	1.00
##000000	17.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE65D

Deuteranopia (green-blind)

#FFEB72

Tritanopia (blue-blind)

#FEE2D2

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #efef6b;
/* rgb */ color: rgb(239, 239, 107);
/* oklch */ color: oklch(92.7% 0.153 109.1);

Tailwind

colors: {
  custom: {
    50: '#f7f49a',
    500: '#efef6b',
    950: '#000000',
  },
}

SCSS

$custom: #efef6b;
$custom-light: #f7f49a;
$custom-dark: #000000;

JSON

{
  "hex": "#efef6b",
  "rgb": {
    "r": 239,
    "g": 239,
    "b": 107
  },
  "hsl": {
    "h": 60,
    "s": 80.488,
    "l": 67.843
  },
  "oklch": {
    "l": 0.92694,
    "c": 0.15345,
    "h": 109.1
  },
  "luminance": 0.81145
}

Semantic roles & 50–950 ramp

primary

#EFEF6B

secondary

#3737C7

accent

#09DD09

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFEF6B

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

Preview Lab → · Contrast checker → · Palette generator →