#306CB6#306CB6

#306CB6 is a mid, vivid cyan. Relative luminance 0.147; OKLCH L 53.0% C 0.132 H 255.3°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#306CB6
RGB	rgb(48, 108, 182)
HSL	hsl(213, 58%, 45%)
HSV	hsv(213, 74%, 71%)
CMYK	cmyk(73.6%, 40.7%, 0%, 28.6%)
CIE-LAB	lab(45.26, 6.28, -44.77)
CIE-LCH	lch(45.26, 45.21, 277.98°)
OKLab	oklab(52.96% -0.0336 -0.1278)
OKLCH	oklch(52.96% 0.132 255.3)
XYZ	xyz(15.0219, 14.7292, 46.2982)
Luminance	0.1473 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CB6 #B67A30

analogous

#30AFB6 #306CB6 #3730B6

triadic

#306CB6 #B6306C #6CB630

tetradic

#306CB6 #B630AF #B67A30 #30B637

square

#306CB6 #B630AF #B67A30 #30B637

split-complementary

#306CB6 #B63730 #AFB630

monochromatic

#163355 #234F86 #306CB6 #528BD1 #82ABDE

Accessibility & contrast

On white

5.32

#306CB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#306CB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CB6

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CB6	#FFFFFF	#000000	##FFFFFF
##306CB6	1.00	5.32	3.95	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4972B9

Deuteranopia (green-blind)

#3365B5

Tritanopia (blue-blind)

#007D88

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #306cb6;
/* rgb */ color: rgb(48, 108, 182);
/* oklch */ color: oklch(53.0% 0.132 255.3);

Tailwind

colors: {
  custom: {
    50: '#7a95cc',
    500: '#306cb6',
    950: '#000000',
  },
}

SCSS

$custom: #306cb6;
$custom-light: #7a95cc;
$custom-dark: #000000;

JSON

{
  "hex": "#306cb6",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 182
  },
  "hsl": {
    "h": 213.134,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.52956,
    "c": 0.13217,
    "h": 255.3
  },
  "luminance": 0.14731
}

Semantic roles & 50–950 ramp

primary

#306CB6

secondary

#C7A57B

accent

#9C46E1

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306CB6

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

Preview Lab → · Contrast checker → · Palette generator →