#EFFB8F#EFFB8F

#EFFB8F is a very light, vivid yellow. Relative luminance 0.893; OKLCH L 95.6% C 0.133 H 114.1°. Best body text is #000000 at 18.87:1 contrast (WCAG AA passes).

Color values

HEX	#EFFB8F
RGB	rgb(239, 251, 143)
HSL	hsl(67, 93%, 77%)
HSV	hsv(67, 43%, 98%)
CMYK	cmyk(4.8%, 0%, 43%, 1.6%)
CIE-LAB	lab(95.72, -19.40, 50.25)
CIE-LCH	lch(95.72, 53.87, 111.10°)
OKLab	oklab(95.63% -0.0543 0.1212)
OKLCH	oklch(95.63% 0.133 114.1)
XYZ	xyz(75.0526, 89.3292, 39.2698)
Luminance	0.8933 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFB8F #9B8FFB

analogous

#FBD18F #EFFB8F #B9FB8F

triadic

#EFFB8F #8FEFFB #FB8FEF

tetradic

#EFFB8F #8FFBD1 #9B8FFB #FB8FB9

square

#EFFB8F #8FFBD1 #9B8FFB #FB8FB9

split-complementary

#EFFB8F #8FB9FB #D18FFB

monochromatic

#DEF719 #E7F954 #EFFB8F #F7FDCA #FBFEE1

Accessibility & contrast

On white

1.11

#EFFB8F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.87

#EFFB8F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFB8F

18.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFB8F	#FFFFFF	#000000	##000000
##EFFB8F	1.00	1.11	18.87	18.87
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.87	21.00	1.00	1.00
##000000	18.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF286

Deuteranopia (green-blind)

#FFF494

Tritanopia (blue-blind)

#FBF0E1

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effb8f;
/* rgb */ color: rgb(239, 251, 143);
/* oklch */ color: oklch(95.6% 0.133 114.1);

Tailwind

colors: {
  custom: {
    50: '#f6fcb1',
    500: '#effb8f',
    950: '#000000',
  },
}

SCSS

$custom: #effb8f;
$custom-light: #f6fcb1;
$custom-dark: #000000;

JSON

{
  "hex": "#effb8f",
  "rgb": {
    "r": 239,
    "g": 251,
    "b": 143
  },
  "hsl": {
    "h": 66.667,
    "s": 93.103,
    "l": 77.255
  },
  "oklch": {
    "l": 0.95631,
    "c": 0.13277,
    "h": 114.1
  },
  "luminance": 0.89328
}

Semantic roles & 50–950 ramp

primary

#EFFB8F

secondary

#6253DB

accent

#00E61A

background

#FFFFFD

surface

#FFFFF8

border

#D7D7D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFFB8F

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

Preview Lab → · Contrast checker → · Palette generator →