#306BC7#306BC7

#306BC7 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 53.9% C 0.156 H 259.2°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#306BC7
RGB	rgb(48, 107, 199)
HSL	hsl(217, 61%, 48%)
HSV	hsv(217, 76%, 78%)
CMYK	cmyk(75.9%, 46.2%, 0%, 22%)
CIE-LAB	lab(46.00, 13.28, -53.43)
CIE-LCH	lch(46.00, 55.06, 283.96°)
OKLab	oklab(53.86% -0.0294 -0.1533)
OKLCH	oklch(53.86% 0.156 259.2)
XYZ	xyz(16.7817, 15.2654, 56.0838)
Luminance	0.1527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306BC7 #C78C30

analogous

#30B6C7 #306BC7 #4030C7

triadic

#306BC7 #C7306B #6BC730

tetradic

#306BC7 #C730B6 #C78C30 #30C740

square

#306BC7 #C730B6 #C78C30 #30C740

split-complementary

#306BC7 #C74030 #B6C730

monochromatic

#183664 #245096 #306BC7 #5C8DD8 #8EAFE4

Accessibility & contrast

On white

5.18

#306BC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#306BC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306BC7

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306BC7	#FFFFFF	#000000	##FFFFFF
##306BC7	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A74CA

Deuteranopia (green-blind)

#1466C5

Tritanopia (blue-blind)

#00818F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #306bc7;
/* rgb */ color: rgb(48, 107, 199);
/* oklch */ color: oklch(53.9% 0.156 259.2);

Tailwind

colors: {
  custom: {
    50: '#7d94d8',
    500: '#306bc7',
    950: '#000000',
  },
}

SCSS

$custom: #306bc7;
$custom-light: #7d94d8;
$custom-dark: #000000;

JSON

{
  "hex": "#306bc7",
  "rgb": {
    "r": 48,
    "g": 107,
    "b": 199
  },
  "hsl": {
    "h": 216.556,
    "s": 61.134,
    "l": 48.431
  },
  "oklch": {
    "l": 0.53855,
    "c": 0.15608,
    "h": 259.2
  },
  "luminance": 0.15267
}

Semantic roles & 50–950 ramp

primary

#306BC7

secondary

#CEB185

accent

#A544E4

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D15

muted

#7C7E83

Preview Lab

Preview with #306BC7

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

Preview Lab → · Contrast checker → · Palette generator →