#306BC9#306BC9

#306BC9 is a mid, vivid blue. Relative luminance 0.154; OKLCH L 54.0% C 0.159 H 259.5°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#306BC9
RGB	rgb(48, 107, 201)
HSL	hsl(217, 61%, 49%)
HSV	hsv(217, 76%, 79%)
CMYK	cmyk(76.1%, 46.8%, 0%, 21.2%)
CIE-LAB	lab(46.12, 14.03, -54.38)
CIE-LCH	lch(46.12, 56.16, 284.47°)
OKLab	oklab(53.99% -0.029 -0.1561)
OKLCH	oklch(53.99% 0.159 259.5)
XYZ	xyz(17.0154, 15.3589, 57.3148)
Luminance	0.1536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306BC9 #C98E30

analogous

#30B8C9 #306BC9 #4230C9

triadic

#306BC9 #C9306B #6BC930

tetradic

#306BC9 #C930B8 #C98E30 #30C942

square

#306BC9 #C930B8 #C98E30 #30C942

split-complementary

#306BC9 #C94230 #B8C930

monochromatic

#183666 #245198 #306BC9 #5E8DD8 #8FB0E4

Accessibility & contrast

On white

5.16

#306BC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#306BC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306BC9

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306BC9	#FFFFFF	#000000	##FFFFFF
##306BC9	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3875CD

Deuteranopia (green-blind)

#0E67C7

Tritanopia (blue-blind)

#008190

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #306bc9;
/* rgb */ color: rgb(48, 107, 201);
/* oklch */ color: oklch(54.0% 0.159 259.5);

Tailwind

colors: {
  custom: {
    50: '#7e94da',
    500: '#306bc9',
    950: '#000000',
  },
}

SCSS

$custom: #306bc9;
$custom-light: #7e94da;
$custom-dark: #000000;

JSON

{
  "hex": "#306bc9",
  "rgb": {
    "r": 48,
    "g": 107,
    "b": 201
  },
  "hsl": {
    "h": 216.863,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.53992,
    "c": 0.15876,
    "h": 259.5
  },
  "luminance": 0.15361
}

Semantic roles & 50–950 ramp

primary

#306BC9

secondary

#CFB386

accent

#A643E5

background

#F8F9FD

surface

#EFF1FB

border

#CACBD4

text

#0B0D15

muted

#7C7E83

Preview Lab

Preview with #306BC9

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

Preview Lab → · Contrast checker → · Palette generator →