#306BC6#306BC6

#306BC6 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 53.8% C 0.155 H 259.0°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#306BC6
RGB	rgb(48, 107, 198)
HSL	hsl(216, 61%, 48%)
HSV	hsv(216, 76%, 78%)
CMYK	cmyk(75.8%, 46%, 0%, 22.4%)
CIE-LAB	lab(45.93, 12.90, -52.96)
CIE-LCH	lch(45.93, 54.51, 283.69°)
OKLab	oklab(53.79% -0.0296 -0.1519)
OKLCH	oklch(53.79% 0.155 259)
XYZ	xyz(16.6659, 15.2191, 55.4744)
Luminance	0.1522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306BC6 #C68B30

analogous

#30B6C6 #306BC6 #4030C6

triadic

#306BC6 #C6306B #6BC630

tetradic

#306BC6 #C630B6 #C68B30 #30C640

square

#306BC6 #C630B6 #C68B30 #30C640

split-complementary

#306BC6 #C64030 #B6C630

monochromatic

#183663 #245095 #306BC6 #5C8CD7 #8DAFE3

Accessibility & contrast

On white

5.19

#306BC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#306BC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306BC6

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306BC6	#FFFFFF	#000000	##FFFFFF
##306BC6	1.00	5.19	4.04	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B74C9

Deuteranopia (green-blind)

#1766C4

Tritanopia (blue-blind)

#00818F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #306bc6;
/* rgb */ color: rgb(48, 107, 198);
/* oklch */ color: oklch(53.8% 0.155 259.0);

Tailwind

colors: {
  custom: {
    50: '#7d94d8',
    500: '#306bc6',
    950: '#000000',
  },
}

SCSS

$custom: #306bc6;
$custom-light: #7d94d8;
$custom-dark: #000000;

JSON

{
  "hex": "#306bc6",
  "rgb": {
    "r": 48,
    "g": 107,
    "b": 198
  },
  "hsl": {
    "h": 216.4,
    "s": 60.976,
    "l": 48.235
  },
  "oklch": {
    "l": 0.53786,
    "c": 0.15474,
    "h": 259
  },
  "luminance": 0.15221
}

Semantic roles & 50–950 ramp

primary

#306BC6

secondary

#CEB184

accent

#A544E4

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #306BC6

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

Preview Lab → · Contrast checker → · Palette generator →