#303DC1#303DC1

#303DC1 is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.4% C 0.203 H 270.7°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#303DC1
RGB	rgb(48, 61, 193)
HSL	hsl(235, 60%, 47%)
HSV	hsv(235, 75%, 76%)
CMYK	cmyk(75.1%, 68.4%, 0%, 24.3%)
CIE-LAB	lab(33.59, 40.57, -70.11)
CIE-LCH	lch(33.59, 81.00, 300.06°)
OKLab	oklab(44.41% 0.0026 -0.2029)
OKLCH	oklch(44.41% 0.203 270.7)
XYZ	xyz(12.5100, 7.8148, 51.2908)
Luminance	0.0782 (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

#303DC1 #C1B430

analogous

#3085C1 #303DC1 #6C30C1

triadic

#303DC1 #C1303D #3DC130

tetradic

#303DC1 #C13085 #C1B430 #30C16C

square

#303DC1 #C13085 #C1B430 #30C16C

split-complementary

#303DC1 #C16C30 #85C130

monochromatic

#181E5F #242E90 #303DC1 #5964D6 #8A92E2

Accessibility & contrast

On white

8.19

#303DC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#303DC1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303DC1

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303DC1	#FFFFFF	#000000	##FFFFFF
##303DC1	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C5

Deuteranopia (green-blind)

#0048BF

Tritanopia (blue-blind)

#00617A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #303dc1;
/* rgb */ color: rgb(48, 61, 193);
/* oklch */ color: oklch(44.4% 0.203 270.7);

Tailwind

colors: {
  custom: {
    50: '#7f73d5',
    500: '#303dc1',
    950: '#000000',
  },
}

SCSS

$custom: #303dc1;
$custom-light: #7f73d5;
$custom-dark: #000000;

JSON

{
  "hex": "#303dc1",
  "rgb": {
    "r": 48,
    "g": 61,
    "b": 193
  },
  "hsl": {
    "h": 234.621,
    "s": 60.166,
    "l": 47.255
  },
  "oklch": {
    "l": 0.44409,
    "c": 0.2029,
    "h": 270.7
  },
  "luminance": 0.07816
}

Semantic roles & 50–950 ramp

primary

#303DC1

secondary

#CCC581

accent

#D544E3

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #303DC1

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

Preview Lab → · Contrast checker → · Palette generator →