#303FC0#303FC0

#303FC0 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.6% C 0.199 H 270.5°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#303FC0
RGB	rgb(48, 63, 192)
HSL	hsl(234, 60%, 47%)
HSV	hsv(234, 75%, 75%)
CMYK	cmyk(75%, 67.2%, 0%, 24.7%)
CIE-LAB	lab(33.96, 38.99, -68.93)
CIE-LCH	lch(33.96, 79.19, 299.49°)
OKLab	oklab(44.65% 0.0016 -0.1994)
OKLCH	oklch(44.65% 0.199 270.5)
XYZ	xyz(12.5076, 7.9878, 50.7416)
Luminance	0.0799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303FC0 #C0B130

analogous

#3087C0 #303FC0 #6930C0

triadic

#303FC0 #C0303F #3FC030

tetradic

#303FC0 #C03087 #C0B130 #30C069

square

#303FC0 #C03087 #C0B130 #30C069

split-complementary

#303FC0 #C06930 #87C030

monochromatic

#181F5E #242F8F #303FC0 #5865D5 #8992E1

Accessibility & contrast

On white

8.08

#303FC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#303FC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303FC0

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303FC0	#FFFFFF	#000000	##FFFFFF
##303FC0	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C4

Deuteranopia (green-blind)

#0049BE

Tritanopia (blue-blind)

#00627A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #303fc0;
/* rgb */ color: rgb(48, 63, 192);
/* oklch */ color: oklch(44.6% 0.199 270.5);

Tailwind

colors: {
  custom: {
    50: '#7e74d4',
    500: '#303fc0',
    950: '#000000',
  },
}

SCSS

$custom: #303fc0;
$custom-light: #7e74d4;
$custom-dark: #000000;

JSON

{
  "hex": "#303fc0",
  "rgb": {
    "r": 48,
    "g": 63,
    "b": 192
  },
  "hsl": {
    "h": 233.75,
    "s": 60,
    "l": 47.059
  },
  "oklch": {
    "l": 0.44645,
    "c": 0.19943,
    "h": 270.5
  },
  "luminance": 0.07989
}

Semantic roles & 50–950 ramp

primary

#303FC0

secondary

#CBC480

accent

#D345E3

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #303FC0

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

Preview Lab → · Contrast checker → · Palette generator →