#303CC1#303CC1

#303CC1 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.2% C 0.204 H 270.9°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#303CC1
RGB	rgb(48, 60, 193)
HSL	hsl(235, 60%, 47%)
HSV	hsv(235, 75%, 76%)
CMYK	cmyk(75.1%, 68.9%, 0%, 24.3%)
CIE-LAB	lab(33.37, 41.18, -70.48)
CIE-LCH	lch(33.37, 81.63, 300.30°)
OKLab	oklab(44.25% 0.0031 -0.204)
OKLCH	oklch(44.25% 0.204 270.9)
XYZ	xyz(12.4571, 7.7090, 51.2732)
Luminance	0.0771 (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

#303CC1 #C1B530

analogous

#3085C1 #303CC1 #6C30C1

triadic

#303CC1 #C1303C #3CC130

tetradic

#303CC1 #C13085 #C1B530 #30C16C

square

#303CC1 #C13085 #C1B530 #30C16C

split-complementary

#303CC1 #C16C30 #85C130

monochromatic

#181E5F #242D90 #303CC1 #5963D6 #8A91E2

Accessibility & contrast

On white

8.26

#303CC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#303CC1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303CC1

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303CC1	#FFFFFF	#000000	##FFFFFF
##303CC1	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C5

Deuteranopia (green-blind)

#0048BF

Tritanopia (blue-blind)

#00617A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #303cc1;
/* rgb */ color: rgb(48, 60, 193);
/* oklch */ color: oklch(44.2% 0.204 270.9);

Tailwind

colors: {
  custom: {
    50: '#7f72d5',
    500: '#303cc1',
    950: '#000000',
  },
}

SCSS

$custom: #303cc1;
$custom-light: #7f72d5;
$custom-dark: #000000;

JSON

{
  "hex": "#303cc1",
  "rgb": {
    "r": 48,
    "g": 60,
    "b": 193
  },
  "hsl": {
    "h": 235.034,
    "s": 60.166,
    "l": 47.255
  },
  "oklch": {
    "l": 0.44246,
    "c": 0.20398,
    "h": 270.9
  },
  "luminance": 0.0771
}

Semantic roles & 50–950 ramp

primary

#303CC1

secondary

#CCC681

accent

#D644E3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #303CC1

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

Preview Lab → · Contrast checker → · Palette generator →