#FBFF4B#FBFF4B

#FBFF4B is a very light, vivid yellow. Relative luminance 0.925; OKLCH L 96.7% C 0.190 H 110.8°. Best body text is #000000 at 19.51:1 contrast (WCAG AA passes).

Color values

HEX	#FBFF4B
RGB	rgb(251, 255, 75)
HSL	hsl(61, 100%, 65%)
HSV	hsv(61, 71%, 100%)
CMYK	cmyk(1.6%, 0%, 70.6%, 0%)
CIE-LAB	lab(97.04, -21.50, 80.32)
CIE-LCH	lch(97.04, 83.15, 104.99°)
OKLab	oklab(96.71% -0.0673 0.1777)
OKLCH	oklch(96.71% 0.19 110.8)
XYZ	xyz(76.8163, 92.5393, 20.4707)
Luminance	0.9254 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FBFF4B #4F4BFF

analogous

#FFA94B #FBFF4B #A1FF4B

triadic

#FBFF4B #4BFBFF #FF4BFB

tetradic

#FBFF4B #4BFFA9 #4F4BFF #FF4BA1

square

#FBFF4B #4BFFA9 #4F4BFF #FF4BA1

split-complementary

#FBFF4B #4BA1FF #A94BFF

monochromatic

#CBD000 #FAFF0E #FBFF4B #FCFF88 #FEFFC5

Accessibility & contrast

On white

1.08

#FBFF4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.51

#FBFF4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FBFF4B

19.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FBFF4B	#FFFFFF	#000000	##000000
##FBFF4B	1.00	1.08	19.51	19.51
#FFFFFF	1.08	1.00	21.00	21.00
#000000	19.51	21.00	1.00	1.00
##000000	19.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF429

Deuteranopia (green-blind)

#FFF959

Tritanopia (blue-blind)

#FFEFDC

Achromatopsia (no color)

#F6F6F6

Design tokens & code

CSS

--color: #fbff4b;
/* rgb */ color: rgb(251, 255, 75);
/* oklch */ color: oklch(96.7% 0.190 110.8);

Tailwind

colors: {
  custom: {
    50: '#ffff89',
    500: '#fbff4b',
    950: '#000000',
  },
}

SCSS

$custom: #fbff4b;
$custom-light: #ffff89;
$custom-dark: #000000;

JSON

{
  "hex": "#fbff4b",
  "rgb": {
    "r": 251,
    "g": 255,
    "b": 75
  },
  "hsl": {
    "h": 61.333,
    "s": 100,
    "l": 64.706
  },
  "oklch": {
    "l": 0.9671,
    "c": 0.19002,
    "h": 110.8
  },
  "luminance": 0.92537
}

Semantic roles & 50–950 ramp

primary

#FBFF4B

secondary

#2724CA

accent

#00E605

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170C

muted

#87857F

Preview Lab

Preview with #FBFF4B

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

Preview Lab → · Contrast checker → · Palette generator →