#FCEF63#FCEF63

#FCEF63 is a very light, vivid yellow. Relative luminance 0.833; OKLCH L 93.7% C 0.159 H 104.0°. Best body text is #000000 at 17.67:1 contrast (WCAG AA passes).

Color values

HEX	#FCEF63
RGB	rgb(252, 239, 99)
HSL	hsl(55, 96%, 69%)
HSV	hsv(55, 61%, 99%)
CMYK	cmyk(0%, 5.2%, 60.7%, 1.2%)
CIE-LAB	lab(93.16, -12.07, 67.35)
CIE-LCH	lch(93.16, 68.42, 100.16°)
OKLab	oklab(93.69% -0.0384 0.1539)
OKLCH	oklch(93.69% 0.159 104)
XYZ	xyz(73.2662, 83.3320, 24.0273)
Luminance	0.8333 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FCEF63 #6370FC

analogous

#FCA363 #FCEF63 #BDFC63

triadic

#FCEF63 #63FCEF #EF63FC

tetradic

#FCEF63 #63FCA3 #6370FC #FC63BD

square

#FCEF63 #63FCA3 #6370FC #FC63BD

split-complementary

#FCEF63 #63BDFC #A363FC

monochromatic

#E0CE04 #FBE927 #FCEF63 #FDF59F #FEFBDB

Accessibility & contrast

On white

1.19

#FCEF63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.67

#FCEF63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FCEF63

17.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FCEF63	#FFFFFF	#000000	##000000
##FCEF63	1.00	1.19	17.67	17.67
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.67	21.00	1.00	1.00
##000000	17.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE753

Deuteranopia (green-blind)

#FFEE6B

Tritanopia (blue-blind)

#FFE0D1

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #fcef63;
/* rgb */ color: rgb(252, 239, 99);
/* oklch */ color: oklch(93.7% 0.159 104.0);

Tailwind

colors: {
  custom: {
    50: '#fff495',
    500: '#fcef63',
    950: '#000000',
  },
}

SCSS

$custom: #fcef63;
$custom-light: #fff495;
$custom-dark: #000000;

JSON

{
  "hex": "#fcef63",
  "rgb": {
    "r": 252,
    "g": 239,
    "b": 99
  },
  "hsl": {
    "h": 54.902,
    "s": 96.226,
    "l": 68.824
  },
  "oklch": {
    "l": 0.93688,
    "c": 0.15865,
    "h": 104
  },
  "luminance": 0.83329
}

Semantic roles & 50–950 ramp

primary

#FCEF63

secondary

#2D3BD6

accent

#13E600

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #FCEF63

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

Preview Lab → · Contrast checker → · Palette generator →