#FEFF5B#FEFF5B

#FEFF5B is a very light, vivid yellow. Relative luminance 0.933; OKLCH L 97.1% C 0.179 H 109.7°. Best body text is #000000 at 19.67:1 contrast (WCAG AA passes).

Color values

HEX	#FEFF5B
RGB	rgb(254, 255, 91)
HSL	hsl(60, 100%, 68%)
HSV	hsv(60, 64%, 100%)
CMYK	cmyk(0.4%, 0%, 64.3%, 0%)
CIE-LAB	lab(97.37, -19.49, 75.03)
CIE-LCH	lch(97.37, 77.52, 104.57°)
OKLab	oklab(97.06% -0.0604 0.169)
OKLCH	oklch(97.06% 0.179 109.7)
XYZ	xyz(78.5239, 93.3483, 23.7771)
Luminance	0.9335 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEFF5B #5C5BFF

analogous

#FFAE5B #FEFF5B #ACFF5B

triadic

#FEFF5B #5BFEFF #FF5BFE

tetradic

#FEFF5B #5BFFAE #5C5BFF #FF5BAC

square

#FEFF5B #5BFFAE #5C5BFF #FF5BAC

split-complementary

#FEFF5B #5BACFF #AE5BFF

monochromatic

#DEE000 #FEFF1E #FEFF5B #FEFF98 #FFFFD5

Accessibility & contrast

On white

1.07

#FEFF5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.67

#FEFF5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEFF5B

19.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEFF5B	#FFFFFF	#000000	##000000
##FEFF5B	1.00	1.07	19.67	19.67
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.67	21.00	1.00	1.00
##000000	19.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF544

Deuteranopia (green-blind)

#FFFA66

Tritanopia (blue-blind)

#FFF0DE

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #feff5b;
/* rgb */ color: rgb(254, 255, 91);
/* oklch */ color: oklch(97.1% 0.179 109.7);

Tailwind

colors: {
  custom: {
    50: '#ffff91',
    500: '#feff5b',
    950: '#000000',
  },
}

SCSS

$custom: #feff5b;
$custom-light: #ffff91;
$custom-dark: #000000;

JSON

{
  "hex": "#feff5b",
  "rgb": {
    "r": 254,
    "g": 255,
    "b": 91
  },
  "hsl": {
    "h": 60.366,
    "s": 100,
    "l": 67.843
  },
  "oklch": {
    "l": 0.9706,
    "c": 0.17943,
    "h": 109.7
  },
  "luminance": 0.93346
}

Semantic roles & 50–950 ramp

primary

#FEFF5B

secondary

#2726D8

accent

#00E601

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FEFF5B

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

Preview Lab → · Contrast checker → · Palette generator →