#EFFE7B#EFFE7B

#EFFE7B is a very light, vivid yellow. Relative luminance 0.907; OKLCH L 96.0% C 0.156 H 114.8°. Best body text is #000000 at 19.13:1 contrast (WCAG AA passes).

Color values

HEX#EFFE7B
RGBrgb(239, 254, 123)
HSLhsl(67, 98%, 74%)
HSVhsv(67, 52%, 100%)
CMYKcmyk(5.9%, 0%, 51.6%, 0.4%)
CIE-LABlab(96.27, -22.69, 60.18)
CIE-LCHlch(96.27, 64.31, 110.65°)
OKLaboklab(96% -0.0654 0.1415)
OKLCHoklch(96% 0.156 114.8)
XYZxyz(74.6148, 90.6655, 32.3046)
Luminance0.9066 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#EFFE7B #8A7BFE
analogous
#FECC7B #EFFE7B #AEFE7B
triadic
#EFFE7B #7BEFFE #FE7BEF
tetradic
#EFFE7B #7BFECC #8A7BFE #FE7BAE
square
#EFFE7B #7BFECC #8A7BFE #FE7BAE
split-complementary
#EFFE7B #7BAEFE #CC7BFE
monochromatic
#E0FD02 #E8FE3E #EFFE7B #F6FEB8 #FBFFE1

Accessibility & contrast

On white

1.10
#EFFE7B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

19.13
#EFFE7B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFE7B
19.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##EFFE7B#FFFFFF#000000##000000
##EFFE7B1.001.1019.1319.13
#FFFFFF1.101.0021.0021.00
#00000019.1321.001.001.00
##00000019.1321.001.001.00

Color blindness preview

Protanopia (red-blind)
#FFF36E
Deuteranopia (green-blind)
#FFF682
Tritanopia (blue-blind)
#FCF2E1
Achromatopsia (no color)
#F4F4F4

Design tokens & code

CSS
--color: #effe7b;
/* rgb */ color: rgb(239, 254, 123);
/* oklch */ color: oklch(96.0% 0.156 114.8);
Tailwind
colors: {
  custom: {
    50: '#f6fea4',
    500: '#effe7b',
    950: '#000000',
  },
}
SCSS
$custom: #effe7b;
$custom-light: #f6fea4;
$custom-dark: #000000;
JSON
{
  "hex": "#effe7b",
  "rgb": {
    "r": 239,
    "g": 254,
    "b": 123
  },
  "hsl": {
    "h": 66.87,
    "s": 98.496,
    "l": 73.922
  },
  "oklch": {
    "l": 0.95999,
    "c": 0.15588,
    "h": 114.8
  },
  "luminance": 0.90664
}

Semantic roles & 50–950 ramp

primary
#EFFE7B
secondary
#5341DC
accent
#00E61A
background
#FFFFFC
surface
#FFFFF6
border
#D7D7D0
text
#17170F
muted
#858580

Preview Lab

Preview with #EFFE7B

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

Preview Lab → · Contrast checker → · Palette generator →

#EFFE7B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva