#305DB5#305DB5

#305DB5 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.6% C 0.148 H 262.1°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#305DB5
RGB	rgb(48, 93, 181)
HSL	hsl(220, 58%, 45%)
HSV	hsv(220, 73%, 71%)
CMYK	cmyk(73.5%, 48.6%, 0%, 29%)
CIE-LAB	lab(40.88, 15.50, -51.20)
CIE-LCH	lch(40.88, 53.50, 286.84°)
OKLab	oklab(49.56% -0.0204 -0.147)
OKLCH	oklch(49.56% 0.148 262.1)
XYZ	xyz(13.4708, 11.7918, 45.2732)
Luminance	0.1179 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305DB5 #B58830

analogous

#30A0B5 #305DB5 #4530B5

triadic

#305DB5 #B5305D #5DB530

tetradic

#305DB5 #B530A0 #B58830 #30B545

square

#305DB5 #B530A0 #B58830 #30B545

split-complementary

#305DB5 #B54530 #A0B530

monochromatic

#162B54 #234485 #305DB5 #517CD1 #82A1DE

Accessibility & contrast

On white

6.25

#305DB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#305DB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305DB5

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305DB5	#FFFFFF	#000000	##FFFFFF
##305DB5	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C67B8

Deuteranopia (green-blind)

#005BB3

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #305db5;
/* rgb */ color: rgb(48, 93, 181);
/* oklch */ color: oklch(49.6% 0.148 262.1);

Tailwind

colors: {
  custom: {
    50: '#7a8acc',
    500: '#305db5',
    950: '#000000',
  },
}

SCSS

$custom: #305db5;
$custom-light: #7a8acc;
$custom-dark: #000000;

JSON

{
  "hex": "#305db5",
  "rgb": {
    "r": 48,
    "g": 93,
    "b": 181
  },
  "hsl": {
    "h": 219.699,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.49556,
    "c": 0.1484,
    "h": 262.1
  },
  "luminance": 0.11793
}

Semantic roles & 50–950 ramp

primary

#305DB5

secondary

#C7AD7A

accent

#AD46E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #305DB5

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

Preview Lab → · Contrast checker → · Palette generator →