#FEFF59#FEFF59

#FEFF59 is a very light, vivid yellow. Relative luminance 0.933; OKLCH L 97.0% C 0.181 H 109.7°. Best body text is #000000 at 19.66:1 contrast (WCAG AA passes).

Color values

HEX	#FEFF59
RGB	rgb(254, 255, 89)
HSL	hsl(60, 100%, 67%)
HSV	hsv(60, 65%, 100%)
CMYK	cmyk(0.4%, 0%, 65.1%, 0%)
CIE-LAB	lab(97.36, -19.60, 75.76)
CIE-LCH	lch(97.36, 78.26, 104.51°)
OKLab	oklab(97.05% -0.0609 0.1702)
OKLCH	oklch(97.05% 0.181 109.7)
XYZ	xyz(78.4388, 93.3143, 23.3288)
Luminance	0.9331 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEFF59 #5A59FF

analogous

#FFAD59 #FEFF59 #ABFF59

triadic

#FEFF59 #59FEFF #FF59FE

tetradic

#FEFF59 #59FFAD #5A59FF #FF59AB

square

#FEFF59 #59FFAD #5A59FF #FF59AB

split-complementary

#FEFF59 #59ABFF #AD59FF

monochromatic

#DCDE00 #FEFF1C #FEFF59 #FEFF96 #FFFFD3

Accessibility & contrast

On white

1.07

#FEFF59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.66

#FEFF59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEFF59

19.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEFF59	#FFFFFF	#000000	##000000
##FEFF59	1.00	1.07	19.66	19.66
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.66	21.00	1.00	1.00
##000000	19.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF541

Deuteranopia (green-blind)

#FFFA64

Tritanopia (blue-blind)

#FFF0DD

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #feff59;
/* rgb */ color: rgb(254, 255, 89);
/* oklch */ color: oklch(97.0% 0.181 109.7);

Tailwind

colors: {
  custom: {
    50: '#ffff90',
    500: '#feff59',
    950: '#000000',
  },
}

SCSS

$custom: #feff59;
$custom-light: #ffff90;
$custom-dark: #000000;

JSON

{
  "hex": "#feff59",
  "rgb": {
    "r": 254,
    "g": 255,
    "b": 89
  },
  "hsl": {
    "h": 60.361,
    "s": 100,
    "l": 67.451
  },
  "oklch": {
    "l": 0.97045,
    "c": 0.18079,
    "h": 109.7
  },
  "luminance": 0.93312
}

Semantic roles & 50–950 ramp

primary

#FEFF59

secondary

#2726D6

accent

#00E601

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FEFF59

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

Preview Lab → · Contrast checker → · Palette generator →