#EFFA5F#EFFA5F

#EFFA5F is a very light, vivid yellow. Relative luminance 0.875; OKLCH L 94.9% C 0.175 H 113.1°. Best body text is #000000 at 18.51:1 contrast (WCAG AA passes).

Color values

HEX#EFFA5F
RGBrgb(239, 250, 95)
HSLhsl(64, 94%, 68%)
HSVhsv(64, 62%, 98%)
CMYKcmyk(4.4%, 0%, 62%, 2%)
CIE-LABlab(94.97, -22.85, 70.62)
CIE-LCHlch(94.97, 74.22, 107.93°)
OKLaboklab(94.88% -0.0686 0.1606)
OKLCHoklch(94.88% 0.175 113.1)
XYZxyz(71.8496, 87.5496, 23.9381)
Luminance0.8755 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#EFFA5F #6A5FFA
analogous
#FAB75F #EFFA5F #A2FA5F
triadic
#EFFA5F #5FEFFA #FA5FEF
tetradic
#EFFA5F #5FFAB7 #6A5FFA #FA5FA2
square
#EFFA5F #5FFAB7 #6A5FFA #FA5FA2
split-complementary
#EFFA5F #5FA2FA #B75FFA
monochromatic
#C9D807 #E9F824 #EFFA5F #F5FC9A #FBFED6

Accessibility & contrast

On white

1.13
#EFFA5F on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

18.51
#EFFA5F on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFA5F
18.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##EFFA5F#FFFFFF#000000##000000
##EFFA5F1.001.1318.5118.51
#FFFFFF1.131.0021.0021.00
#00000018.5121.001.001.00
##00000018.5121.001.001.00

Color blindness preview

Protanopia (red-blind)
#FFEF4B
Deuteranopia (green-blind)
#FFF269
Tritanopia (blue-blind)
#FEECDA
Achromatopsia (no color)
#F0F0F0

Design tokens & code

CSS
--color: #effa5f;
/* rgb */ color: rgb(239, 250, 95);
/* oklch */ color: oklch(94.9% 0.175 113.1);
Tailwind
colors: {
  custom: {
    50: '#f7fb93',
    500: '#effa5f',
    950: '#000000',
  },
}
SCSS
$custom: #effa5f;
$custom-light: #f7fb93;
$custom-dark: #000000;
JSON
{
  "hex": "#effa5f",
  "rgb": {
    "r": 239,
    "g": 250,
    "b": 95
  },
  "hsl": {
    "h": 64.258,
    "s": 93.939,
    "l": 67.647
  },
  "oklch": {
    "l": 0.94877,
    "c": 0.17464,
    "h": 113.1
  },
  "luminance": 0.87548
}

Semantic roles & 50–950 ramp

primary
#EFFA5F
secondary
#372BD2
accent
#00E610
background
#FFFFFC
surface
#FFFFF5
border
#D7D7CF
text
#18170E
muted
#86857F

Preview Lab

Preview with #EFFA5F

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

Preview Lab → · Contrast checker → · Palette generator →

#EFFA5F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva