#306FBC#306FBC

#306FBC is a mid, vivid cyan. Relative luminance 0.156; OKLCH L 54.0% C 0.137 H 255.2°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#306FBC
RGB	rgb(48, 111, 188)
HSL	hsl(213, 59%, 46%)
HSV	hsv(213, 74%, 74%)
CMYK	cmyk(74.5%, 41%, 0%, 26.3%)
CIE-LAB	lab(46.48, 6.63, -46.31)
CIE-LCH	lch(46.48, 46.78, 278.15°)
OKLab	oklab(54.02% -0.035 -0.1323)
OKLCH	oklch(54.02% 0.137 255.2)
XYZ	xyz(15.9771, 15.6263, 49.7413)
Luminance	0.1563 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306FBC #BC7D30

analogous

#30B5BC #306FBC #3730BC

triadic

#306FBC #BC306F #6FBC30

tetradic

#306FBC #BC30B5 #BC7D30 #30BC37

square

#306FBC #BC30B5 #BC7D30 #30BC37

split-complementary

#306FBC #BC3730 #B5BC30

monochromatic

#17355A #24528B #306FBC #558ED4 #86AFE0

Accessibility & contrast

On white

5.09

#306FBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#306FBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306FBC

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306FBC	#FFFFFF	#000000	##FFFFFF
##306FBC	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A75BF

Deuteranopia (green-blind)

#3368BA

Tritanopia (blue-blind)

#00818C

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #306fbc;
/* rgb */ color: rgb(48, 111, 188);
/* oklch */ color: oklch(54.0% 0.137 255.2);

Tailwind

colors: {
  custom: {
    50: '#7b97d0',
    500: '#306fbc',
    950: '#000000',
  },
}

SCSS

$custom: #306fbc;
$custom-light: #7b97d0;
$custom-dark: #000000;

JSON

{
  "hex": "#306fbc",
  "rgb": {
    "r": 48,
    "g": 111,
    "b": 188
  },
  "hsl": {
    "h": 213,
    "s": 59.322,
    "l": 46.275
  },
  "oklch": {
    "l": 0.54016,
    "c": 0.13684,
    "h": 255.2
  },
  "luminance": 0.15628
}

Semantic roles & 50–950 ramp

primary

#306FBC

secondary

#CAA87E

accent

#9C45E3

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #306FBC

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

Preview Lab → · Contrast checker → · Palette generator →