Sunny Yellow#FFF917

#FFF917 is a very light, highly saturated yellow. Relative luminance 0.891; OKLCH L 95.6% C 0.203 H 107.9°. Best body text is #000000 at 18.81:1 contrast (WCAG AA passes).

Sunny Yellow — editorial page

Color values

HEX	#FFF917
RGB	rgb(255, 249, 23)
HSL	hsl(58, 100%, 55%)
HSV	hsv(58, 91%, 100%)
CMYK	cmyk(0%, 2.4%, 91%, 0%)
CIE-LAB	lab(95.61, -18.49, 91.40)
CIE-LCH	lch(95.61, 93.25, 101.44°)
OKLab	oklab(95.59% -0.0624 0.1933)
OKLCH	oklch(95.59% 0.203 107.9)
XYZ	xyz(75.2737, 89.0760, 14.0388)
Luminance	0.8907 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFF917 #171DFF

analogous

#FF8517 #FFF917 #91FF17

triadic

#FFF917 #17FFF9 #F917FF

tetradic

#FFF917 #17FF85 #171DFF #FF1791

square

#FFF917 #17FF85 #171DFF #FF1791

split-complementary

#FFF917 #1791FF #8517FF

monochromatic

#9C9800 #D9D300 #FFF917 #FFFB54 #FFFC91

Accessibility & contrast

On white

1.12

#FFF917 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.81

#FFF917 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFF917

18.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFF917	#FFFFFF	#000000	##000000
##FFF917	1.00	1.12	18.81	18.81
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.81	21.00	1.00	1.00
##000000	18.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF00

Deuteranopia (green-blind)

#FFF636

Tritanopia (blue-blind)

#FFE8D5

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #fff917;
/* rgb */ color: rgb(255, 249, 23);
/* oklch */ color: oklch(95.6% 0.203 107.9);

Tailwind

colors: {
  custom: {
    50: '#fffa75',
    500: '#fff917',
    950: '#000000',
  },
}

SCSS

$custom: #fff917;
$custom-light: #fffa75;
$custom-dark: #000000;

JSON

{
  "hex": "#fff917",
  "rgb": {
    "r": 255,
    "g": 249,
    "b": 23
  },
  "hsl": {
    "h": 58.448,
    "s": 100,
    "l": 54.51
  },
  "oklch": {
    "l": 0.95586,
    "c": 0.20315,
    "h": 107.9
  },
  "luminance": 0.89073
}

Semantic roles & 50–950 ramp

primary

#FFF917

secondary

#1C1F9E

accent

#2EFF29

background

#FFFFFB

surface

#FFFFF2

border

#D7D7CC

text

#19170A

muted

#87857D

Preview Lab

Preview with #FFF917

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

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