#306CC9#306CC9

#306CC9 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.2% C 0.158 H 259.1°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#306CC9
RGB	rgb(48, 108, 201)
HSL	hsl(216, 61%, 49%)
HSV	hsv(216, 76%, 79%)
CMYK	cmyk(76.1%, 46.3%, 0%, 21.2%)
CIE-LAB	lab(46.40, 13.40, -53.93)
CIE-LCH	lch(46.40, 55.56, 283.95°)
OKLab	oklab(54.21% -0.0299 -0.1547)
OKLCH	oklch(54.21% 0.158 259.1)
XYZ	xyz(17.1203, 15.5686, 57.3498)
Luminance	0.1557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CC9 #C98D30

analogous

#30B9C9 #306CC9 #4130C9

triadic

#306CC9 #C9306C #6CC930

tetradic

#306CC9 #C930B9 #C98D30 #30C941

square

#306CC9 #C930B9 #C98D30 #30C941

split-complementary

#306CC9 #C94130 #B9C930

monochromatic

#183766 #245198 #306CC9 #5E8ED8 #8FB1E4

Accessibility & contrast

On white

5.10

#306CC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#306CC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CC9

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CC9	#FFFFFF	#000000	##FFFFFF
##306CC9	1.00	5.10	4.11	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A75CC

Deuteranopia (green-blind)

#1467C7

Tritanopia (blue-blind)

#008291

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #306cc9;
/* rgb */ color: rgb(48, 108, 201);
/* oklch */ color: oklch(54.2% 0.158 259.1);

Tailwind

colors: {
  custom: {
    50: '#7e95da',
    500: '#306cc9',
    950: '#000000',
  },
}

SCSS

$custom: #306cc9;
$custom-light: #7e95da;
$custom-dark: #000000;

JSON

{
  "hex": "#306cc9",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 201
  },
  "hsl": {
    "h": 216.471,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54209,
    "c": 0.15759,
    "h": 259.1
  },
  "luminance": 0.15571
}

Semantic roles & 50–950 ramp

primary

#306CC9

secondary

#CFB286

accent

#A543E5

background

#F8F9FD

surface

#EFF1FB

border

#CACBD4

text

#0B0D15

muted

#7C7E83

Preview Lab

Preview with #306CC9

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

Preview Lab → · Contrast checker → · Palette generator →