#EFEE63#EFEE63

#EFEE63 is a very light, vivid yellow. Relative luminance 0.804; OKLCH L 92.4% C 0.159 H 108.8°. Best body text is #000000 at 17.08:1 contrast (WCAG AA passes).

Color values

HEX	#EFEE63
RGB	rgb(239, 238, 99)
HSL	hsl(60, 81%, 66%)
HSV	hsv(60, 59%, 94%)
CMYK	cmyk(0%, 0.4%, 58.6%, 6.3%)
CIE-LAB	lab(91.87, -16.81, 65.64)
CIE-LCH	lch(91.87, 67.76, 104.37°)
OKLab	oklab(92.41% -0.0511 0.1506)
OKLCH	oklch(92.41% 0.159 108.8)
XYZ	xyz(68.4253, 80.4025, 23.7168)
Luminance	0.8040 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEE63 #6364EF

analogous

#EFA863 #EFEE63 #AAEF63

triadic

#EFEE63 #63EFEE #EE63EF

tetradic

#EFEE63 #63EFA8 #6364EF #EF63AA

square

#EFEE63 #63EFA8 #6364EF #EF63AA

split-complementary

#EFEE63 #63AAEF #A863EF

monochromatic

#C4C214 #E9E82B #EFEE63 #F5F49B #FAFAD2

Accessibility & contrast

On white

1.23

#EFEE63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.08

#EFEE63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEE63

17.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEE63	#FFFFFF	#000000	##000000
##EFEE63	1.00	1.23	17.08	17.08
#FFFFFF	1.23	1.00	21.00	21.00
#000000	17.08	21.00	1.00	1.00
##000000	17.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE553

Deuteranopia (green-blind)

#FFEA6B

Tritanopia (blue-blind)

#FFE0D0

Achromatopsia (no color)

#E8E8E8

Design tokens & code

CSS

--color: #efee63;
/* rgb */ color: rgb(239, 238, 99);
/* oklch */ color: oklch(92.4% 0.159 108.8);

Tailwind

colors: {
  custom: {
    50: '#f7f395',
    500: '#efee63',
    950: '#000000',
  },
}

SCSS

$custom: #efee63;
$custom-light: #f7f395;
$custom-dark: #000000;

JSON

{
  "hex": "#efee63",
  "rgb": {
    "r": 239,
    "g": 238,
    "b": 99
  },
  "hsl": {
    "h": 59.571,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.92406,
    "c": 0.15904,
    "h": 108.8
  },
  "luminance": 0.80401
}

Semantic roles & 50–950 ramp

primary

#EFEE63

secondary

#3536C1

accent

#09DE08

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFEE63

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

Preview Lab → · Contrast checker → · Palette generator →