#345CB5#345CB5

#345CB5 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.5% C 0.148 H 263.7°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#345CB5
RGB	rgb(52, 92, 181)
HSL	hsl(221, 55%, 46%)
HSV	hsv(221, 71%, 71%)
CMYK	cmyk(71.3%, 49.2%, 0%, 29%)
CIE-LAB	lab(40.77, 16.71, -51.38)
CIE-LCH	lch(40.77, 54.03, 288.02°)
OKLab	oklab(49.51% -0.0163 -0.1475)
OKLCH	oklch(49.51% 0.148 263.7)
XYZ	xyz(13.5809, 11.7191, 45.2534)
Luminance	0.1172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#345CB5 #B58D34

analogous

#349CB5 #345CB5 #4C34B5

triadic

#345CB5 #B5345C #5CB534

tetradic

#345CB5 #B5349C #B58D34 #34B54C

square

#345CB5 #B5349C #B58D34 #34B54C

split-complementary

#345CB5 #B54C34 #9CB534

monochromatic

#192C56 #264485 #345CB5 #577CCF #87A1DC

Accessibility & contrast

On white

6.28

#345CB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#345CB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #345CB5

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##345CB5	#FFFFFF	#000000	##FFFFFF
##345CB5	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A66B8

Deuteranopia (green-blind)

#005BB3

Tritanopia (blue-blind)

#007180

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #345cb5;
/* rgb */ color: rgb(52, 92, 181);
/* oklch */ color: oklch(49.5% 0.148 263.7);

Tailwind

colors: {
  custom: {
    50: '#7c89cc',
    500: '#345cb5',
    950: '#000000',
  },
}

SCSS

$custom: #345cb5;
$custom-light: #7c89cc;
$custom-dark: #000000;

JSON

{
  "hex": "#345cb5",
  "rgb": {
    "r": 52,
    "g": 92,
    "b": 181
  },
  "hsl": {
    "h": 221.395,
    "s": 55.365,
    "l": 45.686
  },
  "oklch": {
    "l": 0.49512,
    "c": 0.14836,
    "h": 263.7
  },
  "luminance": 0.11721
}

Semantic roles & 50–950 ramp

primary

#345CB5

secondary

#C6B07F

accent

#B049DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #345CB5

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

Preview Lab → · Contrast checker → · Palette generator →