#306CDA#306CDA

#306CDA is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.4% C 0.180 H 261.3°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#306CDA
RGB	rgb(48, 108, 218)
HSL	hsl(219, 70%, 52%)
HSV	hsv(219, 78%, 85%)
CMYK	cmyk(78%, 50.5%, 0%, 14.5%)
CIE-LAB	lab(47.51, 19.78, -61.84)
CIE-LCH	lch(47.51, 64.93, 287.74°)
OKLab	oklab(55.41% -0.0274 -0.178)
OKLCH	oklch(55.41% 0.18 261.3)
XYZ	xyz(19.2318, 16.4132, 68.4705)
Luminance	0.1641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CDA #DA9E30

analogous

#30C1DA #306CDA #4930DA

triadic

#306CDA #DA306C #6CDA30

tetradic

#306CDA #DA30C1 #DA9E30 #30DA49

square

#306CDA #DA30C1 #DA9E30 #30DA49

split-complementary

#306CDA #DA4930 #C1DA30

monochromatic

#16397A #1F51AE #306CDA #6491E3 #98B6ED

Accessibility & contrast

On white

4.90

#306CDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#306CDA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CDA

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CDA	#FFFFFF	#000000	##FFFFFF
##306CDA	1.00	4.90	4.28	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2579DE

Deuteranopia (green-blind)

#0069D8

Tritanopia (blue-blind)

#008799

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #306cda;
/* rgb */ color: rgb(48, 108, 218);
/* oklch */ color: oklch(55.4% 0.180 261.3);

Tailwind

colors: {
  custom: {
    50: '#8195e6',
    500: '#306cda',
    950: '#000000',
  },
}

SCSS

$custom: #306cda;
$custom-light: #8195e6;
$custom-dark: #000000;

JSON

{
  "hex": "#306cda",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 218
  },
  "hsl": {
    "h": 218.824,
    "s": 69.672,
    "l": 52.157
  },
  "oklch": {
    "l": 0.55414,
    "c": 0.18013,
    "h": 261.3
  },
  "luminance": 0.16415
}

Semantic roles & 50–950 ramp

primary

#306CDA

secondary

#D8BE8E

accent

#AE3BEC

background

#F8F9FE

surface

#F0F1FC

border

#CBCBD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #306CDA

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

Preview Lab → · Contrast checker → · Palette generator →