#306DC4#306DC4

#306DC4 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.1% C 0.150 H 257.8°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#306DC4
RGB	rgb(48, 109, 196)
HSL	hsl(215, 61%, 48%)
HSV	hsv(215, 76%, 77%)
CMYK	cmyk(75.5%, 44.4%, 0%, 23.1%)
CIE-LAB	lab(46.38, 10.88, -51.09)
CIE-LCH	lch(46.38, 52.24, 282.03°)
OKLab	oklab(54.09% -0.0316 -0.1464)
OKLCH	oklch(54.09% 0.15 257.8)
XYZ	xyz(16.6477, 15.5493, 54.3378)
Luminance	0.1555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306DC4 #C48730

analogous

#30B7C4 #306DC4 #3D30C4

triadic

#306DC4 #C4306D #6DC430

tetradic

#306DC4 #C430B7 #C48730 #30C43D

square

#306DC4 #C430B7 #C48730 #30C43D

split-complementary

#306DC4 #C43D30 #B7C430

monochromatic

#183662 #245293 #306DC4 #5A8ED7 #8CB0E3

Accessibility & contrast

On white

5.11

#306DC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#306DC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306DC4

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306DC4	#FFFFFF	#000000	##FFFFFF
##306DC4	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4175C7

Deuteranopia (green-blind)

#2368C2

Tritanopia (blue-blind)

#00828F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #306dc4;
/* rgb */ color: rgb(48, 109, 196);
/* oklch */ color: oklch(54.1% 0.150 257.8);

Tailwind

colors: {
  custom: {
    50: '#7d96d6',
    500: '#306dc4',
    950: '#000000',
  },
}

SCSS

$custom: #306dc4;
$custom-light: #7d96d6;
$custom-dark: #000000;

JSON

{
  "hex": "#306dc4",
  "rgb": {
    "r": 48,
    "g": 109,
    "b": 196
  },
  "hsl": {
    "h": 215.27,
    "s": 60.656,
    "l": 47.843
  },
  "oklch": {
    "l": 0.5409,
    "c": 0.14974,
    "h": 257.8
  },
  "luminance": 0.15551
}

Semantic roles & 50–950 ramp

primary

#306DC4

secondary

#CDAE83

accent

#A244E4

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #306DC4

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

Preview Lab → · Contrast checker → · Palette generator →