#305DB7#305DB7

#305DB7 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.7% C 0.151 H 262.4°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#305DB7
RGB	rgb(48, 93, 183)
HSL	hsl(220, 58%, 45%)
HSV	hsv(220, 74%, 72%)
CMYK	cmyk(73.8%, 49.2%, 0%, 28.2%)
CIE-LAB	lab(41.02, 16.26, -52.16)
CIE-LCH	lch(41.02, 54.63, 287.31°)
OKLab	oklab(49.7% -0.0201 -0.1498)
OKLCH	oklch(49.7% 0.151 262.4)
XYZ	xyz(13.6775, 11.8745, 46.3617)
Luminance	0.1188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305DB7 #B78A30

analogous

#30A0B7 #305DB7 #4630B7

triadic

#305DB7 #B7305D #5DB730

tetradic

#305DB7 #B730A0 #B78A30 #30B746

square

#305DB7 #B730A0 #B78A30 #30B746

split-complementary

#305DB7 #B74630 #A0B730

monochromatic

#172C56 #234487 #305DB7 #527DD2 #83A1DE

Accessibility & contrast

On white

6.22

#305DB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#305DB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305DB7

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305DB7	#FFFFFF	#000000	##FFFFFF
##305DB7	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A67BA

Deuteranopia (green-blind)

#005BB5

Tritanopia (blue-blind)

#007281

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #305db7;
/* rgb */ color: rgb(48, 93, 183);
/* oklch */ color: oklch(49.7% 0.151 262.4);

Tailwind

colors: {
  custom: {
    50: '#7a8acd',
    500: '#305db7',
    950: '#000000',
  },
}

SCSS

$custom: #305db7;
$custom-light: #7a8acd;
$custom-dark: #000000;

JSON

{
  "hex": "#305db7",
  "rgb": {
    "r": 48,
    "g": 93,
    "b": 183
  },
  "hsl": {
    "h": 220,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.497,
    "c": 0.15116,
    "h": 262.4
  },
  "luminance": 0.11876
}

Semantic roles & 50–950 ramp

primary

#305DB7

secondary

#C8AE7B

accent

#AE46E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #305DB7

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

Preview Lab → · Contrast checker → · Palette generator →