#FFFC51#FFFC51

#FFFC51 is a very light, vivid yellow. Relative luminance 0.915; OKLCH L 96.4% C 0.183 H 108.4°. Best body text is #000000 at 19.29:1 contrast (WCAG AA passes).

Color values

HEX	#FFFC51
RGB	rgb(255, 252, 81)
HSL	hsl(59, 100%, 66%)
HSV	hsv(59, 68%, 100%)
CMYK	cmyk(0%, 1.2%, 68.2%, 0%)
CIE-LAB	lab(96.61, -18.18, 77.95)
CIE-LCH	lch(96.61, 80.04, 103.13°)
OKLab	oklab(96.45% -0.0577 0.1735)
OKLCH	oklch(96.45% 0.183 108.4)
XYZ	xyz(77.5384, 91.4773, 21.3554)
Luminance	0.9147 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFFC51 #5154FF

analogous

#FFA551 #FFFC51 #ABFF51

triadic

#FFFC51 #51FFFC #FC51FF

tetradic

#FFFC51 #51FFA5 #5154FF #FF51AB

square

#FFFC51 #51FFA5 #5154FF #FF51AB

split-complementary

#FFFC51 #51ABFF #A551FF

monochromatic

#D6D200 #FFFB14 #FFFC51 #FFFD8E #FFFECB

Accessibility & contrast

On white

1.09

#FFFC51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.29

#FFFC51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFFC51

19.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFFC51	#FFFFFF	#000000	##000000
##FFFC51	1.00	1.09	19.29	19.29
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.29	21.00	1.00	1.00
##000000	19.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF235

Deuteranopia (green-blind)

#FFF85D

Tritanopia (blue-blind)

#FFECDA

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #fffc51;
/* rgb */ color: rgb(255, 252, 81);
/* oklch */ color: oklch(96.4% 0.183 108.4);

Tailwind

colors: {
  custom: {
    50: '#fffd8c',
    500: '#fffc51',
    950: '#000000',
  },
}

SCSS

$custom: #fffc51;
$custom-light: #fffd8c;
$custom-dark: #000000;

JSON

{
  "hex": "#fffc51",
  "rgb": {
    "r": 255,
    "g": 252,
    "b": 81
  },
  "hsl": {
    "h": 58.966,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.96449,
    "c": 0.18288,
    "h": 108.4
  },
  "luminance": 0.91475
}

Semantic roles & 50–950 ramp

primary

#FFFC51

secondary

#2528D0

accent

#04E600

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FFFC51

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

Preview Lab → · Contrast checker → · Palette generator →