#EFFD91#EFFD91

#EFFD91 is a very light, vivid yellow. Relative luminance 0.906; OKLCH L 96.1% C 0.133 H 115.0°. Best body text is #000000 at 19.13:1 contrast (WCAG AA passes).

Color values

HEX	#EFFD91
RGB	rgb(239, 253, 145)
HSL	hsl(68, 96%, 78%)
HSV	hsv(68, 43%, 99%)
CMYK	cmyk(5.5%, 0%, 42.7%, 0.8%)
CIE-LAB	lab(96.26, -20.15, 49.98)
CIE-LCH	lch(96.26, 53.89, 111.96°)
OKLab	oklab(96.08% -0.0563 0.1207)
OKLCH	oklch(96.08% 0.133 115)
XYZ	xyz(75.8335, 90.6465, 40.2842)
Luminance	0.9065 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFD91 #9F91FD

analogous

#FDD591 #EFFD91 #B9FD91

triadic

#EFFD91 #91EFFD #FD91EF

tetradic

#EFFD91 #91FDD5 #9F91FD #FD91B9

square

#EFFD91 #91FDD5 #9F91FD #FD91B9

split-complementary

#EFFD91 #91B9FD #D591FD

monochromatic

#DEFB19 #E6FC55 #EFFD91 #F8FECD #FBFEE1

Accessibility & contrast

On white

1.10

#EFFD91 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.13

#EFFD91 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFD91

19.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFD91	#FFFFFF	#000000	##000000
##EFFD91	1.00	1.10	19.13	19.13
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.13	21.00	1.00	1.00
##000000	19.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF388

Deuteranopia (green-blind)

#FFF596

Tritanopia (blue-blind)

#FAF2E3

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #effd91;
/* rgb */ color: rgb(239, 253, 145);
/* oklch */ color: oklch(96.1% 0.133 115.0);

Tailwind

colors: {
  custom: {
    50: '#f6feb3',
    500: '#effd91',
    950: '#000000',
  },
}

SCSS

$custom: #effd91;
$custom-light: #f6feb3;
$custom-dark: #000000;

JSON

{
  "hex": "#effd91",
  "rgb": {
    "r": 239,
    "g": 253,
    "b": 145
  },
  "hsl": {
    "h": 67.778,
    "s": 96.429,
    "l": 78.039
  },
  "oklch": {
    "l": 0.96075,
    "c": 0.13315,
    "h": 115
  },
  "luminance": 0.90646
}

Semantic roles & 50–950 ramp

primary

#EFFD91

secondary

#6654DE

accent

#00E61E

background

#FFFFFD

surface

#FFFFF8

border

#D7D7D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFFD91

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

Preview Lab → · Contrast checker → · Palette generator →