#303FC1#303FC1

#303FC1 is a dark, highly saturated blue. Relative luminance 0.080; OKLCH L 44.7% C 0.201 H 270.4°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#303FC1
RGB	rgb(48, 63, 193)
HSL	hsl(234, 60%, 47%)
HSV	hsv(234, 75%, 76%)
CMYK	cmyk(75.1%, 67.4%, 0%, 24.3%)
CIE-LAB	lab(34.05, 39.34, -69.36)
CIE-LCH	lch(34.05, 79.74, 299.56°)
OKLab	oklab(44.74% 0.0015 -0.2007)
OKLCH	oklch(44.74% 0.201 270.4)
XYZ	xyz(12.6188, 8.0323, 51.3271)
Luminance	0.0803 (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

#303FC1 #C1B230

analogous

#3088C1 #303FC1 #6930C1

triadic

#303FC1 #C1303F #3FC130

tetradic

#303FC1 #C13088 #C1B230 #30C169

square

#303FC1 #C13088 #C1B230 #30C169

split-complementary

#303FC1 #C16930 #88C130

monochromatic

#181F5F #242F90 #303FC1 #5966D6 #8A93E2

Accessibility & contrast

On white

8.06

#303FC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#303FC1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303FC1

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303FC1	#FFFFFF	#000000	##FFFFFF
##303FC1	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C5

Deuteranopia (green-blind)

#0049BF

Tritanopia (blue-blind)

#00627B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #303fc1;
/* rgb */ color: rgb(48, 63, 193);
/* oklch */ color: oklch(44.7% 0.201 270.4);

Tailwind

colors: {
  custom: {
    50: '#7f74d5',
    500: '#303fc1',
    950: '#000000',
  },
}

SCSS

$custom: #303fc1;
$custom-light: #7f74d5;
$custom-dark: #000000;

JSON

{
  "hex": "#303fc1",
  "rgb": {
    "r": 48,
    "g": 63,
    "b": 193
  },
  "hsl": {
    "h": 233.793,
    "s": 60.166,
    "l": 47.255
  },
  "oklch": {
    "l": 0.4474,
    "c": 0.2007,
    "h": 270.4
  },
  "luminance": 0.08034
}

Semantic roles & 50–950 ramp

primary

#303FC1

secondary

#CCC481

accent

#D344E3

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #303FC1

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

Preview Lab → · Contrast checker → · Palette generator →