#303CC5#303CC5

#303CC5 is a dark, highly saturated blue. Relative luminance 0.079; OKLCH L 44.6% C 0.209 H 270.7°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#303CC5
RGB	rgb(48, 60, 197)
HSL	hsl(235, 61%, 48%)
HSV	hsv(235, 76%, 77%)
CMYK	cmyk(75.6%, 69.5%, 0%, 22.7%)
CIE-LAB	lab(33.75, 42.56, -72.19)
CIE-LCH	lch(33.75, 83.81, 300.52°)
OKLab	oklab(44.64% 0.0027 -0.209)
OKLCH	oklch(44.64% 0.209 270.7)
XYZ	xyz(12.9094, 7.8899, 53.6550)
Luminance	0.0789 (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

#303CC5 #C5B930

analogous

#3086C5 #303CC5 #6F30C5

triadic

#303CC5 #C5303C #3CC530

tetradic

#303CC5 #C53086 #C5B930 #30C56F

square

#303CC5 #C53086 #C5B930 #30C56F

split-complementary

#303CC5 #C56F30 #86C530

monochromatic

#181E63 #242D94 #303CC5 #5B65D7 #8C93E3

Accessibility & contrast

On white

8.15

#303CC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#303CC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303CC5

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303CC5	#FFFFFF	#000000	##FFFFFF
##303CC5	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C9

Deuteranopia (green-blind)

#0048C2

Tritanopia (blue-blind)

#00627C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #303cc5;
/* rgb */ color: rgb(48, 60, 197);
/* oklch */ color: oklch(44.6% 0.209 270.7);

Tailwind

colors: {
  custom: {
    50: '#8072d8',
    500: '#303cc5',
    950: '#000000',
  },
}

SCSS

$custom: #303cc5;
$custom-light: #8072d8;
$custom-dark: #000000;

JSON

{
  "hex": "#303cc5",
  "rgb": {
    "r": 48,
    "g": 60,
    "b": 197
  },
  "hsl": {
    "h": 235.168,
    "s": 60.816,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44639,
    "c": 0.20898,
    "h": 270.7
  },
  "luminance": 0.07891
}

Semantic roles & 50–950 ramp

primary

#303CC5

secondary

#CDC784

accent

#D744E4

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #303CC5

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

Preview Lab → · Contrast checker → · Palette generator →