#306BC4#306BC4

#306BC4 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 53.6% C 0.152 H 258.7°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#306BC4
RGB	rgb(48, 107, 196)
HSL	hsl(216, 61%, 48%)
HSV	hsv(216, 76%, 77%)
CMYK	cmyk(75.5%, 45.4%, 0%, 23.1%)
CIE-LAB	lab(45.81, 12.15, -52.00)
CIE-LCH	lch(45.81, 53.41, 283.15°)
OKLab	oklab(53.65% -0.0299 -0.1491)
OKLCH	oklch(53.65% 0.152 258.7)
XYZ	xyz(16.4368, 15.1274, 54.2675)
Luminance	0.1513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306BC4 #C48930

analogous

#30B5C4 #306BC4 #3F30C4

triadic

#306BC4 #C4306B #6BC430

tetradic

#306BC4 #C430B5 #C48930 #30C43F

square

#306BC4 #C430B5 #C48930 #30C43F

split-complementary

#306BC4 #C43F30 #B5C430

monochromatic

#183562 #245093 #306BC4 #5A8CD7 #8CAEE3

Accessibility & contrast

On white

5.22

#306BC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#306BC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306BC4

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306BC4	#FFFFFF	#000000	##FFFFFF
##306BC4	1.00	5.22	4.03	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D74C7

Deuteranopia (green-blind)

#1C66C2

Tritanopia (blue-blind)

#00808E

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #306bc4;
/* rgb */ color: rgb(48, 107, 196);
/* oklch */ color: oklch(53.6% 0.152 258.7);

Tailwind

colors: {
  custom: {
    50: '#7d94d6',
    500: '#306bc4',
    950: '#000000',
  },
}

SCSS

$custom: #306bc4;
$custom-light: #7d94d6;
$custom-dark: #000000;

JSON

{
  "hex": "#306bc4",
  "rgb": {
    "r": 48,
    "g": 107,
    "b": 196
  },
  "hsl": {
    "h": 216.081,
    "s": 60.656,
    "l": 47.843
  },
  "oklch": {
    "l": 0.5365,
    "c": 0.15206,
    "h": 258.7
  },
  "luminance": 0.15129
}

Semantic roles & 50–950 ramp

primary

#306BC4

secondary

#CDAF83

accent

#A444E4

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #306BC4

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

Preview Lab → · Contrast checker → · Palette generator →