#EFFB87#EFFB87

#EFFB87 is a very light, vivid yellow. Relative luminance 0.891; OKLCH L 95.5% C 0.141 H 113.9°. Best body text is #000000 at 18.82:1 contrast (WCAG AA passes).

Color values

HEX	#EFFB87
RGB	rgb(239, 251, 135)
HSL	hsl(66, 94%, 76%)
HSV	hsv(66, 46%, 98%)
CMYK	cmyk(4.8%, 0%, 46.2%, 1.6%)
CIE-LAB	lab(95.62, -20.18, 53.91)
CIE-LCH	lch(95.62, 57.56, 110.52°)
OKLab	oklab(95.52% -0.0572 0.1288)
OKLCH	oklch(95.52% 0.141 113.9)
XYZ	xyz(74.4680, 89.0954, 36.1912)
Luminance	0.8909 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFB87 #9387FB

analogous

#FBCD87 #EFFB87 #B5FB87

triadic

#EFFB87 #87EFFB #FB87EF

tetradic

#EFFB87 #87FBCD #9387FB #FB87B5

square

#EFFB87 #87FBCD #9387FB #FB87B5

split-complementary

#EFFB87 #87B5FB #CD87FB

monochromatic

#DFF711 #E7F94C #EFFB87 #F7FDC2 #FBFEE1

Accessibility & contrast

On white

1.12

#EFFB87 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.82

#EFFB87 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFB87

18.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFB87	#FFFFFF	#000000	##000000
##EFFB87	1.00	1.12	18.82	18.82
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.82	21.00	1.00	1.00
##000000	18.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF17D

Deuteranopia (green-blind)

#FFF48D

Tritanopia (blue-blind)

#FBEFE0

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #effb87;
/* rgb */ color: rgb(239, 251, 135);
/* oklch */ color: oklch(95.5% 0.141 113.9);

Tailwind

colors: {
  custom: {
    50: '#f6fcac',
    500: '#effb87',
    950: '#000000',
  },
}

SCSS

$custom: #effb87;
$custom-light: #f6fcac;
$custom-dark: #000000;

JSON

{
  "hex": "#effb87",
  "rgb": {
    "r": 239,
    "g": 251,
    "b": 135
  },
  "hsl": {
    "h": 66.207,
    "s": 93.548,
    "l": 75.686
  },
  "oklch": {
    "l": 0.95521,
    "c": 0.14089,
    "h": 113.9
  },
  "luminance": 0.89094
}

Semantic roles & 50–950 ramp

primary

#EFFB87

secondary

#5B4CDA

accent

#00E618

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFFB87

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

Preview Lab → · Contrast checker → · Palette generator →