#306AC5#306AC5

#306AC5 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.5% C 0.155 H 259.2°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#306AC5
RGB	rgb(48, 106, 197)
HSL	hsl(217, 61%, 48%)
HSV	hsv(217, 76%, 77%)
CMYK	cmyk(75.6%, 46.2%, 0%, 22.7%)
CIE-LAB	lab(45.59, 13.16, -52.94)
CIE-LCH	lch(45.59, 54.55, 283.96°)
OKLab	oklab(53.5% -0.0289 -0.1519)
OKLCH	oklch(53.5% 0.155 259.2)
XYZ	xyz(16.4473, 14.9658, 54.8344)
Luminance	0.1497 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306AC5 #C58B30

analogous

#30B4C5 #306AC5 #4030C5

triadic

#306AC5 #C5306A #6AC530

tetradic

#306AC5 #C530B4 #C58B30 #30C540

square

#306AC5 #C530B4 #C58B30 #30C540

split-complementary

#306AC5 #C54030 #B4C530

monochromatic

#183563 #245094 #306AC5 #5B8BD7 #8CAEE3

Accessibility & contrast

On white

5.26

#306AC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#306AC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306AC5

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306AC5	#FFFFFF	#000000	##FFFFFF
##306AC5	1.00	5.26	3.99	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A73C8

Deuteranopia (green-blind)

#1566C3

Tritanopia (blue-blind)

#00808E

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #306ac5;
/* rgb */ color: rgb(48, 106, 197);
/* oklch */ color: oklch(53.5% 0.155 259.2);

Tailwind

colors: {
  custom: {
    50: '#7d94d7',
    500: '#306ac5',
    950: '#000000',
  },
}

SCSS

$custom: #306ac5;
$custom-light: #7d94d7;
$custom-dark: #000000;

JSON

{
  "hex": "#306ac5",
  "rgb": {
    "r": 48,
    "g": 106,
    "b": 197
  },
  "hsl": {
    "h": 216.644,
    "s": 60.816,
    "l": 48.039
  },
  "oklch": {
    "l": 0.535,
    "c": 0.15457,
    "h": 259.2
  },
  "luminance": 0.14968
}

Semantic roles & 50–950 ramp

primary

#306AC5

secondary

#CDB184

accent

#A644E4

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #306AC5

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

Preview Lab → · Contrast checker → · Palette generator →