#306CB5#306CB5

#306CB5 is a mid, vivid cyan. Relative luminance 0.147; OKLCH L 52.9% C 0.131 H 255.0°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#306CB5
RGB	rgb(48, 108, 181)
HSL	hsl(213, 58%, 45%)
HSV	hsv(213, 73%, 71%)
CMYK	cmyk(73.5%, 40.3%, 0%, 29%)
CIE-LAB	lab(45.20, 5.90, -44.28)
CIE-LCH	lch(45.20, 44.67, 277.59°)
OKLab	oklab(52.89% -0.0339 -0.1264)
OKLCH	oklch(52.89% 0.131 255)
XYZ	xyz(14.9189, 14.6880, 45.7559)
Luminance	0.1469 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CB5 #B57930

analogous

#30AFB5 #306CB5 #3630B5

triadic

#306CB5 #B5306C #6CB530

tetradic

#306CB5 #B530AF #B57930 #30B536

square

#306CB5 #B530AF #B57930 #30B536

split-complementary

#306CB5 #B53630 #AFB530

monochromatic

#163254 #234F85 #306CB5 #518BD1 #82ABDE

Accessibility & contrast

On white

5.33

#306CB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#306CB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CB5

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CB5	#FFFFFF	#000000	##FFFFFF
##306CB5	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A72B8

Deuteranopia (green-blind)

#3465B4

Tritanopia (blue-blind)

#007D88

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #306cb5;
/* rgb */ color: rgb(48, 108, 181);
/* oklch */ color: oklch(52.9% 0.131 255.0);

Tailwind

colors: {
  custom: {
    50: '#7a95cb',
    500: '#306cb5',
    950: '#000000',
  },
}

SCSS

$custom: #306cb5;
$custom-light: #7a95cb;
$custom-dark: #000000;

JSON

{
  "hex": "#306cb5",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 181
  },
  "hsl": {
    "h": 212.932,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.52893,
    "c": 0.13084,
    "h": 255
  },
  "luminance": 0.1469
}

Semantic roles & 50–950 ramp

primary

#306CB5

secondary

#C7A47A

accent

#9B46E1

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306CB5

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

Preview Lab → · Contrast checker → · Palette generator →