#305EB8#305EB8

#305EB8 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.0% C 0.151 H 262.1°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#305EB8
RGB	rgb(48, 94, 184)
HSL	hsl(220, 59%, 45%)
HSV	hsv(220, 74%, 72%)
CMYK	cmyk(73.9%, 48.9%, 0%, 27.8%)
CIE-LAB	lab(41.36, 15.98, -52.18)
CIE-LCH	lch(41.36, 54.58, 287.03°)
OKLab	oklab(49.99% -0.0208 -0.1499)
OKLCH	oklch(49.99% 0.151 262.1)
XYZ	xyz(13.8703, 12.0930, 46.9413)
Luminance	0.1209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305EB8 #B88A30

analogous

#30A2B8 #305EB8 #4630B8

triadic

#305EB8 #B8305E #5EB830

tetradic

#305EB8 #B830A2 #B88A30 #30B846

square

#305EB8 #B830A2 #B88A30 #30B846

split-complementary

#305EB8 #B84630 #A2B830

monochromatic

#172C57 #234587 #305EB8 #537ED2 #84A2DF

Accessibility & contrast

On white

6.14

#305EB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#305EB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305EB8

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305EB8	#FFFFFF	#000000	##FFFFFF
##305EB8	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B68BB

Deuteranopia (green-blind)

#005CB6

Tritanopia (blue-blind)

#007382

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #305eb8;
/* rgb */ color: rgb(48, 94, 184);
/* oklch */ color: oklch(50.0% 0.151 262.1);

Tailwind

colors: {
  custom: {
    50: '#7b8bce',
    500: '#305eb8',
    950: '#000000',
  },
}

SCSS

$custom: #305eb8;
$custom-light: #7b8bce;
$custom-dark: #000000;

JSON

{
  "hex": "#305eb8",
  "rgb": {
    "r": 48,
    "g": 94,
    "b": 184
  },
  "hsl": {
    "h": 219.706,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.49987,
    "c": 0.1513,
    "h": 262.1
  },
  "luminance": 0.12094
}

Semantic roles & 50–950 ramp

primary

#305EB8

secondary

#C8AE7C

accent

#AD46E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #305EB8

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

Preview Lab → · Contrast checker → · Palette generator →