#305BB2#305BB2

#305BB2 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.9% C 0.147 H 262.5°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#305BB2
RGB	rgb(48, 91, 178)
HSL	hsl(220, 58%, 44%)
HSV	hsv(220, 73%, 70%)
CMYK	cmyk(73%, 48.9%, 0%, 30.2%)
CIE-LAB	lab(40.12, 15.67, -50.67)
CIE-LCH	lch(40.12, 53.04, 287.19°)
OKLab	oklab(48.91% -0.0191 -0.1454)
OKLCH	oklch(48.91% 0.147 262.5)
XYZ	xyz(12.9930, 11.3235, 43.6117)
Luminance	0.1133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305BB2 #B28730

analogous

#309CB2 #305BB2 #4630B2

triadic

#305BB2 #B2305B #5BB230

tetradic

#305BB2 #B2309C #B28730 #30B246

square

#305BB2 #B2309C #B28730 #30B246

split-complementary

#305BB2 #B24630 #9CB230

monochromatic

#162A52 #234282 #305BB2 #507AD0 #809EDD

Accessibility & contrast

On white

6.43

#305BB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#305BB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305BB2

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305BB2	#FFFFFF	#000000	##FFFFFF
##305BB2	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A65B5

Deuteranopia (green-blind)

#0059B0

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #305bb2;
/* rgb */ color: rgb(48, 91, 178);
/* oklch */ color: oklch(48.9% 0.147 262.5);

Tailwind

colors: {
  custom: {
    50: '#7988ca',
    500: '#305bb2',
    950: '#000000',
  },
}

SCSS

$custom: #305bb2;
$custom-light: #7988ca;
$custom-dark: #000000;

JSON

{
  "hex": "#305bb2",
  "rgb": {
    "r": 48,
    "g": 91,
    "b": 178
  },
  "hsl": {
    "h": 220.154,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.48908,
    "c": 0.1467,
    "h": 262.5
  },
  "luminance": 0.11325
}

Semantic roles & 50–950 ramp

primary

#305BB2

secondary

#C6AC78

accent

#AE47E1

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #305BB2

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

Preview Lab → · Contrast checker → · Palette generator →