#306DDA#306DDA

#306DDA is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.6% C 0.179 H 261.0°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#306DDA
RGB	rgb(48, 109, 218)
HSL	hsl(218, 70%, 52%)
HSV	hsv(218, 78%, 85%)
CMYK	cmyk(78%, 50%, 0%, 14.5%)
CIE-LAB	lab(47.78, 19.14, -61.40)
CIE-LCH	lch(47.78, 64.32, 287.32°)
OKLab	oklab(55.62% -0.0281 -0.1767)
OKLCH	oklch(55.62% 0.179 261)
XYZ	xyz(19.3379, 16.6253, 68.5059)
Luminance	0.1663 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306DDA #DA9D30

analogous

#30C2DA #306DDA #4830DA

triadic

#306DDA #DA306D #6DDA30

tetradic

#306DDA #DA30C2 #DA9D30 #30DA48

square

#306DDA #DA30C2 #DA9D30 #30DA48

split-complementary

#306DDA #DA4830 #C2DA30

monochromatic

#163A7A #1F52AE #306DDA #6492E3 #98B6ED

Accessibility & contrast

On white

4.85

#306DDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#306DDA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306DDA

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306DDA	#FFFFFF	#000000	##FFFFFF
##306DDA	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#297ADE

Deuteranopia (green-blind)

#006AD8

Tritanopia (blue-blind)

#008799

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #306dda;
/* rgb */ color: rgb(48, 109, 218);
/* oklch */ color: oklch(55.6% 0.179 261.0);

Tailwind

colors: {
  custom: {
    50: '#8196e6',
    500: '#306dda',
    950: '#000000',
  },
}

SCSS

$custom: #306dda;
$custom-light: #8196e6;
$custom-dark: #000000;

JSON

{
  "hex": "#306dda",
  "rgb": {
    "r": 48,
    "g": 109,
    "b": 218
  },
  "hsl": {
    "h": 218.471,
    "s": 69.672,
    "l": 52.157
  },
  "oklch": {
    "l": 0.55622,
    "c": 0.17894,
    "h": 261
  },
  "luminance": 0.16628
}

Semantic roles & 50–950 ramp

primary

#306DDA

secondary

#D8BD8E

accent

#AD3BEC

background

#F8F9FE

surface

#F0F1FC

border

#CBCBD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #306DDA

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

Preview Lab → · Contrast checker → · Palette generator →