#EFEB66#EFEB66

#EFEB66 is a very light, vivid yellow. Relative luminance 0.787; OKLCH L 91.8% C 0.154 H 107.5°. Best body text is #000000 at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#EFEB66
RGB	rgb(239, 235, 102)
HSL	hsl(58, 81%, 67%)
HSV	hsv(58, 57%, 94%)
CMYK	cmyk(0%, 1.7%, 57.3%, 6.3%)
CIE-LAB	lab(91.11, -15.14, 63.53)
CIE-LCH	lch(91.11, 65.31, 103.41°)
OKLab	oklab(91.81% -0.0461 0.1465)
OKLCH	oklch(91.81% 0.154 107.5)
XYZ	xyz(67.7053, 78.7287, 24.1975)
Luminance	0.7873 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEB66 #666AEF

analogous

#EFA766 #EFEB66 #AFEF66

triadic

#EFEB66 #66EFEB #EB66EF

tetradic

#EFEB66 #66EFA7 #666AEF #EF66AF

square

#EFEB66 #66EFA7 #666AEF #EF66AF

split-complementary

#EFEB66 #66AFEF #A766EF

monochromatic

#C6C115 #E9E42F #EFEB66 #F5F29D #FBF9D5

Accessibility & contrast

On white

1.25

#EFEB66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.75

#EFEB66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEB66

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEB66	#FFFFFF	#000000	##000000
##EFEB66	1.00	1.25	16.75	16.75
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.75	21.00	1.00	1.00
##000000	16.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE358

Deuteranopia (green-blind)

#FFE86D

Tritanopia (blue-blind)

#FFDDCE

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #efeb66;
/* rgb */ color: rgb(239, 235, 102);
/* oklch */ color: oklch(91.8% 0.154 107.5);

Tailwind

colors: {
  custom: {
    50: '#f7f196',
    500: '#efeb66',
    950: '#000000',
  },
}

SCSS

$custom: #efeb66;
$custom-light: #f7f196;
$custom-dark: #000000;

JSON

{
  "hex": "#efeb66",
  "rgb": {
    "r": 239,
    "g": 235,
    "b": 102
  },
  "hsl": {
    "h": 58.248,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.91814,
    "c": 0.15356,
    "h": 107.5
  },
  "luminance": 0.78727
}

Semantic roles & 50–950 ramp

primary

#EFEB66

secondary

#363AC3

accent

#0EDD08

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18160E

muted

#86857F

Preview Lab

Preview with #EFEB66

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

Preview Lab → · Contrast checker → · Palette generator →