#FFFF91#FFFF91

#FFFF91 is a very light, vivid yellow. Relative luminance 0.948; OKLCH L 97.7% C 0.133 H 108.6°. Best body text is #000000 at 19.96:1 contrast (WCAG AA passes).

Color values

HEX	#FFFF91
RGB	rgb(255, 255, 145)
HSL	hsl(60, 100%, 78%)
HSV	hsv(60, 43%, 100%)
CMYK	cmyk(0%, 0%, 43.1%, 0%)
CIE-LAB	lab(97.96, -15.02, 52.35)
CIE-LCH	lch(97.96, 54.46, 106.01°)
OKLab	oklab(97.72% -0.0424 0.1258)
OKLCH	oklch(97.72% 0.133 108.6)
XYZ	xyz(82.1123, 94.8261, 40.7603)
Luminance	0.9482 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFFF91 #9191FF

analogous

#FFC891 #FFFF91 #C8FF91

triadic

#FFFF91 #91FFFF #FF91FF

tetradic

#FFFF91 #91FFC8 #9191FF #FF91C8

square

#FFFF91 #91FFC8 #9191FF #FF91C8

split-complementary

#FFFF91 #91C8FF #C891FF

monochromatic

#FFFF17 #FFFF54 #FFFF91 #FFFFCE #FFFFE0

Accessibility & contrast

On white

1.05

#FFFF91 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.96

#FFFF91 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFFF91

19.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFFF91	#FFFFFF	#000000	##000000
##FFFF91	1.00	1.05	19.96	19.96
#FFFFFF	1.05	1.00	21.00	21.00
#000000	19.96	21.00	1.00	1.00
##000000	19.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF788

Deuteranopia (green-blind)

#FFFB96

Tritanopia (blue-blind)

#FFF3E5

Achromatopsia (no color)

#F9F9F9

Design tokens & code

CSS

--color: #ffff91;
/* rgb */ color: rgb(255, 255, 145);
/* oklch */ color: oklch(97.7% 0.133 108.6);

Tailwind

colors: {
  custom: {
    50: '#ffffb3',
    500: '#ffff91',
    950: '#000000',
  },
}

SCSS

$custom: #ffff91;
$custom-light: #ffffb3;
$custom-dark: #000000;

JSON

{
  "hex": "#ffff91",
  "rgb": {
    "r": 255,
    "g": 255,
    "b": 145
  },
  "hsl": {
    "h": 60,
    "s": 100,
    "l": 78.431
  },
  "oklch": {
    "l": 0.97721,
    "c": 0.13275,
    "h": 108.6
  },
  "luminance": 0.94824
}

Semantic roles & 50–950 ramp

primary

#FFFF91

secondary

#5353E1

accent

#00E600

background

#FFFFFD

surface

#FFFFF8

border

#D7D7D1

text

#181711

muted

#868581

Preview Lab

Preview with #FFFF91

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

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