#FCEF59#FCEF59

#FCEF59 is a very light, vivid yellow. Relative luminance 0.832; OKLCH L 93.6% C 0.166 H 104.4°. Best body text is #000000 at 17.63:1 contrast (WCAG AA passes).

Color values

HEX	#FCEF59
RGB	rgb(252, 239, 89)
HSL	hsl(55, 96%, 67%)
HSV	hsv(55, 65%, 99%)
CMYK	cmyk(0%, 5.2%, 64.7%, 1.2%)
CIE-LAB	lab(93.08, -12.67, 71.31)
CIE-LCH	lch(93.08, 72.43, 100.07°)
OKLab	oklab(93.6% -0.0412 0.1609)
OKLCH	oklch(93.6% 0.166 104.4)
XYZ	xyz(72.8174, 83.1524, 21.6636)
Luminance	0.8315 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FCEF59 #5966FC

analogous

#FC9E59 #FCEF59 #B7FC59

triadic

#FCEF59 #59FCEF #EF59FC

tetradic

#FCEF59 #59FC9E #5966FC #FC59B7

square

#FCEF59 #59FC9E #5966FC #FC59B7

split-complementary

#FCEF59 #59B7FC #9E59FC

monochromatic

#D7C604 #FBE91D #FCEF59 #FDF595 #FEFBD1

Accessibility & contrast

On white

1.19

#FCEF59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.63

#FCEF59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FCEF59

17.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FCEF59	#FFFFFF	#000000	##000000
##FCEF59	1.00	1.19	17.63	17.63
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.63	21.00	1.00	1.00
##000000	17.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE745

Deuteranopia (green-blind)

#FFEE62

Tritanopia (blue-blind)

#FFE0D0

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #fcef59;
/* rgb */ color: rgb(252, 239, 89);
/* oklch */ color: oklch(93.6% 0.166 104.4);

Tailwind

colors: {
  custom: {
    50: '#fff38f',
    500: '#fcef59',
    950: '#000000',
  },
}

SCSS

$custom: #fcef59;
$custom-light: #fff38f;
$custom-dark: #000000;

JSON

{
  "hex": "#fcef59",
  "rgb": {
    "r": 252,
    "g": 239,
    "b": 89
  },
  "hsl": {
    "h": 55.215,
    "s": 96.45,
    "l": 66.863
  },
  "oklch": {
    "l": 0.936,
    "c": 0.16608,
    "h": 104.4
  },
  "luminance": 0.8315
}

Semantic roles & 50–950 ramp

primary

#FCEF59

secondary

#2836D1

accent

#12E600

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FCEF59

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

Preview Lab → · Contrast checker → · Palette generator →