#306FB9#306FB9

#306FB9 is a mid, vivid cyan. Relative luminance 0.155; OKLCH L 53.8% C 0.133 H 254.4°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#306FB9
RGB	rgb(48, 111, 185)
HSL	hsl(212, 59%, 46%)
HSV	hsv(212, 74%, 73%)
CMYK	cmyk(74.1%, 40%, 0%, 27.5%)
CIE-LAB	lab(46.31, 5.52, -44.84)
CIE-LCH	lch(46.31, 45.18, 277.01°)
OKLab	oklab(53.83% -0.0357 -0.128)
OKLCH	oklch(53.83% 0.133 254.4)
XYZ	xyz(15.6571, 15.4983, 48.0558)
Luminance	0.1550 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306FB9 #B97A30

analogous

#30B3B9 #306FB9 #3630B9

triadic

#306FB9 #B9306F #6FB930

tetradic

#306FB9 #B930B3 #B97A30 #30B936

square

#306FB9 #B930B3 #B97A30 #30B936

split-complementary

#306FB9 #B93630 #B3B930

monochromatic

#173558 #235288 #306FB9 #548ED3 #84AEDF

Accessibility & contrast

On white

5.12

#306FB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#306FB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306FB9

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306FB9	#FFFFFF	#000000	##FFFFFF
##306FB9	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C75BC

Deuteranopia (green-blind)

#3668B8

Tritanopia (blue-blind)

#00808B

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #306fb9;
/* rgb */ color: rgb(48, 111, 185);
/* oklch */ color: oklch(53.8% 0.133 254.4);

Tailwind

colors: {
  custom: {
    50: '#7a97ce',
    500: '#306fb9',
    950: '#000000',
  },
}

SCSS

$custom: #306fb9;
$custom-light: #7a97ce;
$custom-dark: #000000;

JSON

{
  "hex": "#306fb9",
  "rgb": {
    "r": 48,
    "g": 111,
    "b": 185
  },
  "hsl": {
    "h": 212.409,
    "s": 58.798,
    "l": 45.686
  },
  "oklch": {
    "l": 0.53828,
    "c": 0.13287,
    "h": 254.4
  },
  "luminance": 0.155
}

Semantic roles & 50–950 ramp

primary

#306FB9

secondary

#C9A57C

accent

#9A46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #306FB9

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

Preview Lab → · Contrast checker → · Palette generator →