#306CB8#306CB8

#306CB8 is a mid, vivid cyan. Relative luminance 0.148; OKLCH L 53.1% C 0.135 H 255.8°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#306CB8
RGB	rgb(48, 108, 184)
HSL	hsl(214, 59%, 45%)
HSV	hsv(214, 74%, 72%)
CMYK	cmyk(73.9%, 41.3%, 0%, 27.8%)
CIE-LAB	lab(45.38, 7.02, -45.75)
CIE-LCH	lch(45.38, 46.29, 278.73°)
OKLab	oklab(53.08% -0.0332 -0.1307)
OKLCH	oklch(53.08% 0.135 255.8)
XYZ	xyz(15.2300, 14.8125, 47.3945)
Luminance	0.1481 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CB8 #B87C30

analogous

#30B0B8 #306CB8 #3830B8

triadic

#306CB8 #B8306C #6CB830

tetradic

#306CB8 #B830B0 #B87C30 #30B838

square

#306CB8 #B830B0 #B87C30 #30B838

split-complementary

#306CB8 #B83830 #B0B830

monochromatic

#173357 #235087 #306CB8 #538BD2 #84ACDF

Accessibility & contrast

On white

5.30

#306CB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#306CB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CB8

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CB8	#FFFFFF	#000000	##FFFFFF
##306CB8	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4872BB

Deuteranopia (green-blind)

#3166B6

Tritanopia (blue-blind)

#007E89

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #306cb8;
/* rgb */ color: rgb(48, 108, 184);
/* oklch */ color: oklch(53.1% 0.135 255.8);

Tailwind

colors: {
  custom: {
    50: '#7a95ce',
    500: '#306cb8',
    950: '#000000',
  },
}

SCSS

$custom: #306cb8;
$custom-light: #7a95ce;
$custom-dark: #000000;

JSON

{
  "hex": "#306cb8",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 184
  },
  "hsl": {
    "h": 213.529,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.53083,
    "c": 0.13484,
    "h": 255.8
  },
  "luminance": 0.14814
}

Semantic roles & 50–950 ramp

primary

#306CB8

secondary

#C8A67C

accent

#9D46E2

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306CB8

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

Preview Lab → · Contrast checker → · Palette generator →