#EFEB64#EFEB64

#EFEB64 is a very light, vivid yellow. Relative luminance 0.787; OKLCH L 91.8% C 0.155 H 107.5°. Best body text is #000000 at 16.74:1 contrast (WCAG AA passes).

Color values

HEX	#EFEB64
RGB	rgb(239, 235, 100)
HSL	hsl(58, 81%, 66%)
HSV	hsv(58, 58%, 94%)
CMYK	cmyk(0%, 1.7%, 58.2%, 6.3%)
CIE-LAB	lab(91.09, -15.28, 64.37)
CIE-LCH	lch(91.09, 66.16, 103.36°)
OKLab	oklab(91.79% -0.0467 0.148)
OKLCH	oklch(91.79% 0.155 107.5)
XYZ	xyz(67.6073, 78.6895, 23.6814)
Luminance	0.7869 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEB64 #6468EF

analogous

#EFA664 #EFEB64 #AEEF64

triadic

#EFEB64 #64EFEB #EB64EF

tetradic

#EFEB64 #64EFA6 #6468EF #EF64AE

square

#EFEB64 #64EFA6 #6468EF #EF64AE

split-complementary

#EFEB64 #64AEEF #A664EF

monochromatic

#C4BF14 #E9E42D #EFEB64 #F5F29B #FAF9D3

Accessibility & contrast

On white

1.25

#EFEB64 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.74

#EFEB64 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEB64

16.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEB64	#FFFFFF	#000000	##000000
##EFEB64	1.00	1.25	16.74	16.74
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.74	21.00	1.00	1.00
##000000	16.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE355

Deuteranopia (green-blind)

#FFE86C

Tritanopia (blue-blind)

#FFDDCE

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #efeb64;
/* rgb */ color: rgb(239, 235, 100);
/* oklch */ color: oklch(91.8% 0.155 107.5);

Tailwind

colors: {
  custom: {
    50: '#f7f195',
    500: '#efeb64',
    950: '#000000',
  },
}

SCSS

$custom: #efeb64;
$custom-light: #f7f195;
$custom-dark: #000000;

JSON

{
  "hex": "#efeb64",
  "rgb": {
    "r": 239,
    "g": 235,
    "b": 100
  },
  "hsl": {
    "h": 58.273,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.91794,
    "c": 0.15521,
    "h": 107.5
  },
  "luminance": 0.78687
}

Semantic roles & 50–950 ramp

primary

#EFEB64

secondary

#3539C2

accent

#0EDE08

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18160E

muted

#86857F

Preview Lab

Preview with #EFEB64

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

Preview Lab → · Contrast checker → · Palette generator →