#EFFC8F#EFFC8F

#EFFC8F is a very light, vivid yellow. Relative luminance 0.900; OKLCH L 95.8% C 0.134 H 114.5°. Best body text is #000000 at 18.99:1 contrast (WCAG AA passes).

Color values

HEX	#EFFC8F
RGB	rgb(239, 252, 143)
HSL	hsl(67, 95%, 77%)
HSV	hsv(67, 43%, 99%)
CMYK	cmyk(5.2%, 0%, 43.3%, 1.2%)
CIE-LAB	lab(95.98, -19.88, 50.58)
CIE-LCH	lch(95.98, 54.34, 111.46°)
OKLab	oklab(95.84% -0.0556 0.1219)
OKLCH	oklch(95.84% 0.134 114.5)
XYZ	xyz(75.3658, 89.9557, 39.3742)
Luminance	0.8995 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFC8F #9C8FFC

analogous

#FCD38F #EFFC8F #B8FC8F

triadic

#EFFC8F #8FEFFC #FC8FEF

tetradic

#EFFC8F #8FFCD3 #9C8FFC #FC8FB8

square

#EFFC8F #8FFCD3 #9C8FFC #FC8FB8

split-complementary

#EFFC8F #8FB8FC #D38FFC

monochromatic

#DEF918 #E6FA53 #EFFC8F #F8FECB #FBFEE1

Accessibility & contrast

On white

1.11

#EFFC8F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.99

#EFFC8F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFC8F

18.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFC8F	#FFFFFF	#000000	##000000
##EFFC8F	1.00	1.11	18.99	18.99
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.99	21.00	1.00	1.00
##000000	18.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF286

Deuteranopia (green-blind)

#FFF594

Tritanopia (blue-blind)

#FAF1E2

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effc8f;
/* rgb */ color: rgb(239, 252, 143);
/* oklch */ color: oklch(95.8% 0.134 114.5);

Tailwind

colors: {
  custom: {
    50: '#f6fdb1',
    500: '#effc8f',
    950: '#000000',
  },
}

SCSS

$custom: #effc8f;
$custom-light: #f6fdb1;
$custom-dark: #000000;

JSON

{
  "hex": "#effc8f",
  "rgb": {
    "r": 239,
    "g": 252,
    "b": 143
  },
  "hsl": {
    "h": 67.156,
    "s": 94.783,
    "l": 77.451
  },
  "oklch": {
    "l": 0.95838,
    "c": 0.13399,
    "h": 114.5
  },
  "luminance": 0.89955
}

Semantic roles & 50–950 ramp

primary

#EFFC8F

secondary

#6353DC

accent

#00E61B

background

#FFFFFD

surface

#FFFFF8

border

#D7D7D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFFC8F

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

Preview Lab → · Contrast checker → · Palette generator →