#306BB9#306BB9

#306BB9 is a mid, vivid cyan. Relative luminance 0.146; OKLCH L 52.9% C 0.137 H 256.5°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#306BB9
RGB	rgb(48, 107, 185)
HSL	hsl(214, 59%, 46%)
HSV	hsv(214, 74%, 73%)
CMYK	cmyk(74.1%, 42.2%, 0%, 27.5%)
CIE-LAB	lab(45.14, 8.03, -46.70)
CIE-LCH	lch(45.14, 47.39, 279.75°)
OKLab	oklab(52.92% -0.0321 -0.1335)
OKLCH	oklch(52.92% 0.137 256.5)
XYZ	xyz(15.2304, 14.6449, 47.9136)
Luminance	0.1465 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306BB9 #B97E30

analogous

#30AFB9 #306BB9 #3A30B9

triadic

#306BB9 #B9306B #6BB930

tetradic

#306BB9 #B930AF #B97E30 #30B93A

square

#306BB9 #B930AF #B97E30 #30B93A

split-complementary

#306BB9 #B93A30 #AFB930

monochromatic

#173358 #234F88 #306BB9 #548AD3 #84ABDF

Accessibility & contrast

On white

5.34

#306BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#306BB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306BB9

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306BB9	#FFFFFF	#000000	##FFFFFF
##306BB9	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4572BC

Deuteranopia (green-blind)

#2E65B7

Tritanopia (blue-blind)

#007D89

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #306bb9;
/* rgb */ color: rgb(48, 107, 185);
/* oklch */ color: oklch(52.9% 0.137 256.5);

Tailwind

colors: {
  custom: {
    50: '#7a94ce',
    500: '#306bb9',
    950: '#000000',
  },
}

SCSS

$custom: #306bb9;
$custom-light: #7a94ce;
$custom-dark: #000000;

JSON

{
  "hex": "#306bb9",
  "rgb": {
    "r": 48,
    "g": 107,
    "b": 185
  },
  "hsl": {
    "h": 214.161,
    "s": 58.798,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52921,
    "c": 0.13731,
    "h": 256.5
  },
  "luminance": 0.14647
}

Semantic roles & 50–950 ramp

primary

#306BB9

secondary

#C9A87C

accent

#9F46E2

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #306BB9

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

Preview Lab → · Contrast checker → · Palette generator →