#306CC7#306CC7

#306CC7 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.1% C 0.155 H 258.8°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#306CC7
RGB	rgb(48, 108, 199)
HSL	hsl(216, 61%, 48%)
HSV	hsv(216, 76%, 78%)
CMYK	cmyk(75.9%, 45.7%, 0%, 22%)
CIE-LAB	lab(46.28, 12.64, -52.98)
CIE-LCH	lch(46.28, 54.47, 283.42°)
OKLab	oklab(54.07% -0.0302 -0.1519)
OKLCH	oklch(54.07% 0.155 258.8)
XYZ	xyz(16.8865, 15.4751, 56.1188)
Luminance	0.1548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CC7 #C78B30

analogous

#30B7C7 #306CC7 #3F30C7

triadic

#306CC7 #C7306C #6CC730

tetradic

#306CC7 #C730B7 #C78B30 #30C73F

square

#306CC7 #C730B7 #C78B30 #30C73F

split-complementary

#306CC7 #C73F30 #B7C730

monochromatic

#183664 #245196 #306CC7 #5C8DD8 #8EB0E4

Accessibility & contrast

On white

5.13

#306CC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#306CC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CC7

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CC7	#FFFFFF	#000000	##FFFFFF
##306CC7	1.00	5.13	4.10	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C75CA

Deuteranopia (green-blind)

#1967C5

Tritanopia (blue-blind)

#008290

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #306cc7;
/* rgb */ color: rgb(48, 108, 199);
/* oklch */ color: oklch(54.1% 0.155 258.8);

Tailwind

colors: {
  custom: {
    50: '#7d95d8',
    500: '#306cc7',
    950: '#000000',
  },
}

SCSS

$custom: #306cc7;
$custom-light: #7d95d8;
$custom-dark: #000000;

JSON

{
  "hex": "#306cc7",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 199
  },
  "hsl": {
    "h": 216.159,
    "s": 61.134,
    "l": 48.431
  },
  "oklch": {
    "l": 0.54072,
    "c": 0.15492,
    "h": 258.8
  },
  "luminance": 0.15477
}

Semantic roles & 50–950 ramp

primary

#306CC7

secondary

#CEB185

accent

#A444E4

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D15

muted

#7C7E83

Preview Lab

Preview with #306CC7

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

Preview Lab → · Contrast checker → · Palette generator →