#EFF063#EFF063

#EFF063 is a very light, vivid yellow. Relative luminance 0.816; OKLCH L 92.8% C 0.161 H 109.5°. Best body text is #000000 at 17.31:1 contrast (WCAG AA passes).

Color values

HEX#EFF063
RGBrgb(239, 240, 99)
HSLhsl(60, 82%, 66%)
HSVhsv(60, 59%, 94%)
CMYKcmyk(0.4%, 0%, 58.8%, 5.9%)
CIE-LABlab(92.39, -17.79, 66.21)
CIE-LCHlch(92.39, 68.56, 105.04°)
OKLaboklab(92.82% -0.0539 0.1518)
OKLCHoklch(92.82% 0.161 109.5)
XYZxyz(69.0108, 81.5736, 23.9119)
Luminance0.8157 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#EFF063 #6463F0
analogous
#F0AB63 #EFF063 #A8F063
triadic
#EFF063 #63EFF0 #F063EF
tetradic
#EFF063 #63F0AB #6463F0 #F063A8
square
#EFF063 #63F0AB #6463F0 #F063A8
split-complementary
#EFF063 #63A8F0 #AB63F0
monochromatic
#C4C613 #E9EB2B #EFF063 #F5F59B #FAFBD3

Accessibility & contrast

On white

1.21
#EFF063 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

17.31
#EFF063 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF063
17.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##EFF063#FFFFFF#000000##000000
##EFF0631.001.2117.3117.31
#FFFFFF1.211.0021.0021.00
#00000017.3121.001.001.00
##00000017.3121.001.001.00

Color blindness preview

Protanopia (red-blind)
#FFE753
Deuteranopia (green-blind)
#FFEB6B
Tritanopia (blue-blind)
#FEE2D2
Achromatopsia (no color)
#E9E9E9

Design tokens & code

CSS
--color: #eff063;
/* rgb */ color: rgb(239, 240, 99);
/* oklch */ color: oklch(92.8% 0.161 109.5);
Tailwind
colors: {
  custom: {
    50: '#f7f495',
    500: '#eff063',
    950: '#000000',
  },
}
SCSS
$custom: #eff063;
$custom-light: #f7f495;
$custom-dark: #000000;
JSON
{
  "hex": "#eff063",
  "rgb": {
    "r": 239,
    "g": 240,
    "b": 99
  },
  "hsl": {
    "h": 60.426,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.92822,
    "c": 0.16109,
    "h": 109.5
  },
  "luminance": 0.81572
}

Semantic roles & 50–950 ramp

primary
#EFF063
secondary
#3534C3
accent
#07DF08
background
#FFFFFC
surface
#FFFEF5
border
#D7D6CF
text
#18170E
muted
#86857F

Preview Lab

Preview with #EFF063

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

Preview Lab → · Contrast checker → · Palette generator →

#EFF063 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva