#306BC3#306BC3

#306BC3 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 53.6% C 0.151 H 258.5°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#306BC3
RGB	rgb(48, 107, 195)
HSL	hsl(216, 60%, 48%)
HSV	hsv(216, 75%, 76%)
CMYK	cmyk(75.4%, 45.1%, 0%, 23.5%)
CIE-LAB	lab(45.75, 11.78, -51.53)
CIE-LCH	lch(45.75, 52.86, 282.87°)
OKLab	oklab(53.58% -0.0301 -0.1477)
OKLCH	oklch(53.58% 0.151 258.5)
XYZ	xyz(16.3233, 15.0820, 53.6700)
Luminance	0.1508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306BC3 #C38830

analogous

#30B5C3 #306BC3 #3E30C3

triadic

#306BC3 #C3306B #6BC330

tetradic

#306BC3 #C330B5 #C38830 #30C33E

square

#306BC3 #C330B5 #C38830 #30C33E

split-complementary

#306BC3 #C33E30 #B5C330

monochromatic

#183561 #245092 #306BC3 #5A8CD6 #8BAEE2

Accessibility & contrast

On white

5.23

#306BC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#306BC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306BC3

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306BC3	#FFFFFF	#000000	##FFFFFF
##306BC3	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E74C6

Deuteranopia (green-blind)

#1E66C1

Tritanopia (blue-blind)

#00808D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #306bc3;
/* rgb */ color: rgb(48, 107, 195);
/* oklch */ color: oklch(53.6% 0.151 258.5);

Tailwind

colors: {
  custom: {
    50: '#7c94d6',
    500: '#306bc3',
    950: '#000000',
  },
}

SCSS

$custom: #306bc3;
$custom-light: #7c94d6;
$custom-dark: #000000;

JSON

{
  "hex": "#306bc3",
  "rgb": {
    "r": 48,
    "g": 107,
    "b": 195
  },
  "hsl": {
    "h": 215.918,
    "s": 60.494,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53582,
    "c": 0.15072,
    "h": 258.5
  },
  "luminance": 0.15084
}

Semantic roles & 50–950 ramp

primary

#306BC3

secondary

#CCAF82

accent

#A444E4

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #306BC3

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

Preview Lab → · Contrast checker → · Palette generator →