#EFFB91#EFFB91

#EFFB91 is a very light, vivid yellow. Relative luminance 0.894; OKLCH L 95.7% C 0.131 H 114.2°. Best body text is #000000 at 18.88:1 contrast (WCAG AA passes).

Color values

HEX	#EFFB91
RGB	rgb(239, 251, 145)
HSL	hsl(67, 93%, 78%)
HSV	hsv(67, 42%, 98%)
CMYK	cmyk(4.8%, 0%, 42.2%, 1.6%)
CIE-LAB	lab(95.74, -19.19, 49.33)
CIE-LCH	lch(95.74, 52.93, 111.26°)
OKLab	oklab(95.66% -0.0535 0.1192)
OKLCH	oklch(95.66% 0.131 114.2)
XYZ	xyz(75.2054, 89.3904, 40.0748)
Luminance	0.8939 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFB91 #9D91FB

analogous

#FBD291 #EFFB91 #BAFB91

triadic

#EFFB91 #91EFFB #FB91EF

tetradic

#EFFB91 #91FBD2 #9D91FB #FB91BA

square

#EFFB91 #91FBD2 #9D91FB #FB91BA

split-complementary

#EFFB91 #91BAFB #D291FB

monochromatic

#DEF71B #E6F956 #EFFB91 #F8FDCC #FBFEE1

Accessibility & contrast

On white

1.11

#EFFB91 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.88

#EFFB91 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFB91

18.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFB91	#FFFFFF	#000000	##000000
##EFFB91	1.00	1.11	18.88	18.88
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.88	21.00	1.00	1.00
##000000	18.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF288

Deuteranopia (green-blind)

#FFF496

Tritanopia (blue-blind)

#FAF0E2

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effb91;
/* rgb */ color: rgb(239, 251, 145);
/* oklch */ color: oklch(95.7% 0.131 114.2);

Tailwind

colors: {
  custom: {
    50: '#f6fcb3',
    500: '#effb91',
    950: '#000000',
  },
}

SCSS

$custom: #effb91;
$custom-light: #f6fcb3;
$custom-dark: #000000;

JSON

{
  "hex": "#effb91",
  "rgb": {
    "r": 239,
    "g": 251,
    "b": 145
  },
  "hsl": {
    "h": 66.792,
    "s": 92.982,
    "l": 77.647
  },
  "oklch": {
    "l": 0.95659,
    "c": 0.13069,
    "h": 114.2
  },
  "luminance": 0.89389
}

Semantic roles & 50–950 ramp

primary

#EFFB91

secondary

#6455DB

accent

#00E61A

background

#FFFFFD

surface

#FFFFF8

border

#D7D7D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFFB91

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

Preview Lab → · Contrast checker → · Palette generator →