#306FB8#306FB8

#306FB8 is a mid, vivid cyan. Relative luminance 0.155; OKLCH L 53.8% C 0.132 H 254.1°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#306FB8
RGB	rgb(48, 111, 184)
HSL	hsl(212, 59%, 45%)
HSV	hsv(212, 74%, 72%)
CMYK	cmyk(73.9%, 39.7%, 0%, 27.8%)
CIE-LAB	lab(46.25, 5.14, -44.35)
CIE-LCH	lch(46.25, 44.65, 276.62°)
OKLab	oklab(53.76% -0.0359 -0.1265)
OKLCH	oklch(53.76% 0.132 254.1)
XYZ	xyz(15.5519, 15.4562, 47.5018)
Luminance	0.1546 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306FB8 #B87930

analogous

#30B3B8 #306FB8 #3530B8

triadic

#306FB8 #B8306F #6FB830

tetradic

#306FB8 #B830B3 #B87930 #30B835

square

#306FB8 #B830B3 #B87930 #30B835

split-complementary

#306FB8 #B83530 #B3B830

monochromatic

#173457 #235287 #306FB8 #538ED2 #84AEDF

Accessibility & contrast

On white

5.13

#306FB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#306FB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306FB8

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306FB8	#FFFFFF	#000000	##FFFFFF
##306FB8	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D74BB

Deuteranopia (green-blind)

#3768B7

Tritanopia (blue-blind)

#00808A

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #306fb8;
/* rgb */ color: rgb(48, 111, 184);
/* oklch */ color: oklch(53.8% 0.132 254.1);

Tailwind

colors: {
  custom: {
    50: '#7a97ce',
    500: '#306fb8',
    950: '#000000',
  },
}

SCSS

$custom: #306fb8;
$custom-light: #7a97ce;
$custom-dark: #000000;

JSON

{
  "hex": "#306fb8",
  "rgb": {
    "r": 48,
    "g": 111,
    "b": 184
  },
  "hsl": {
    "h": 212.206,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.53765,
    "c": 0.13154,
    "h": 254.1
  },
  "luminance": 0.15458
}

Semantic roles & 50–950 ramp

primary

#306FB8

secondary

#C8A57C

accent

#9A46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306FB8

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

Preview Lab → · Contrast checker → · Palette generator →