#EFDF63#EFDF63

#EFDF63 is a very light, vivid yellow. Relative luminance 0.720; OKLCH L 89.3% C 0.145 H 102.0°. Best body text is #000000 at 15.41:1 contrast (WCAG AA passes).

Color values

HEX#EFDF63
RGBrgb(239, 223, 99)
HSLhsl(53, 81%, 66%)
HSVhsv(53, 59%, 94%)
CMYKcmyk(0%, 6.7%, 58.6%, 6.3%)
CIE-LABlab(87.98, -9.41, 61.35)
CIE-LCHlch(87.98, 62.07, 98.72°)
OKLaboklab(89.32% -0.0301 0.1415)
OKLCHoklch(89.32% 0.145 102)
XYZxyz(64.2387, 72.0294, 22.3212)
Luminance0.7203 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#EFDF63 #6373EF
analogous
#EF9963 #EFDF63 #B9EF63
triadic
#EFDF63 #63EFDF #DF63EF
tetradic
#EFDF63 #63EF99 #6373EF #EF63B9
square
#EFDF63 #63EF99 #6373EF #EF63B9
split-complementary
#EFDF63 #63B9EF #9963EF
monochromatic
#C4AF14 #E9D42B #EFDF63 #F5EA9B #FAF6D2

Accessibility & contrast

On white

1.36
#EFDF63 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

15.41
#EFDF63 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFDF63
15.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##EFDF63#FFFFFF#000000##000000
##EFDF631.001.3615.4115.41
#FFFFFF1.361.0021.0021.00
#00000015.4121.001.001.00
##00000015.4121.001.001.00

Color blindness preview

Protanopia (red-blind)
#F1D956
Deuteranopia (green-blind)
#F6E069
Tritanopia (blue-blind)
#FFD1C4
Achromatopsia (no color)
#DDDDDD

Design tokens & code

CSS
--color: #efdf63;
/* rgb */ color: rgb(239, 223, 99);
/* oklch */ color: oklch(89.3% 0.145 102.0);
Tailwind
colors: {
  custom: {
    50: '#f7e894',
    500: '#efdf63',
    950: '#000000',
  },
}
SCSS
$custom: #efdf63;
$custom-light: #f7e894;
$custom-dark: #000000;
JSON
{
  "hex": "#efdf63",
  "rgb": {
    "r": 239,
    "g": 223,
    "b": 99
  },
  "hsl": {
    "h": 53.143,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.89317,
    "c": 0.14463,
    "h": 102
  },
  "luminance": 0.72027
}

Semantic roles & 50–950 ramp

primary
#EFDF63
secondary
#3545C1
accent
#20DE08
background
#FFFEFC
surface
#FFFCF4
border
#D7D5CE
text
#18160D
muted
#86847F

Preview Lab

Preview with #EFDF63

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

Preview Lab → · Contrast checker → · Palette generator →

#EFDF63 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva