#345BB2#345BB2

#345BB2 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.1% C 0.145 H 263.7°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#345BB2
RGB	rgb(52, 91, 178)
HSL	hsl(221, 55%, 45%)
HSV	hsv(221, 71%, 70%)
CMYK	cmyk(70.8%, 48.9%, 0%, 30.2%)
CIE-LAB	lab(40.29, 16.25, -50.39)
CIE-LCH	lch(40.29, 52.94, 287.87°)
OKLab	oklab(49.08% -0.0159 -0.1446)
OKLCH	oklch(49.08% 0.145 263.7)
XYZ	xyz(13.1903, 11.4252, 43.6210)
Luminance	0.1143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#345BB2 #B28B34

analogous

#349AB2 #345BB2 #4C34B2

triadic

#345BB2 #B2345B #5BB234

tetradic

#345BB2 #B2349A #B28B34 #34B24C

square

#345BB2 #B2349A #B28B34 #34B24C

split-complementary

#345BB2 #B24C34 #9AB234

monochromatic

#182B53 #264383 #345BB2 #567BCE #85A0DB

Accessibility & contrast

On white

6.39

#345BB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#345BB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #345BB2

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##345BB2	#FFFFFF	#000000	##FFFFFF
##345BB2	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B65B5

Deuteranopia (green-blind)

#045AB0

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #345bb2;
/* rgb */ color: rgb(52, 91, 178);
/* oklch */ color: oklch(49.1% 0.145 263.7);

Tailwind

colors: {
  custom: {
    50: '#7b88ca',
    500: '#345bb2',
    950: '#000000',
  },
}

SCSS

$custom: #345bb2;
$custom-light: #7b88ca;
$custom-dark: #000000;

JSON

{
  "hex": "#345bb2",
  "rgb": {
    "r": 52,
    "g": 91,
    "b": 178
  },
  "hsl": {
    "h": 221.429,
    "s": 54.783,
    "l": 45.098
  },
  "oklch": {
    "l": 0.49082,
    "c": 0.14543,
    "h": 263.7
  },
  "luminance": 0.11427
}

Semantic roles & 50–950 ramp

primary

#345BB2

secondary

#C5AF7D

accent

#B04ADE

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #345BB2

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

Preview Lab → · Contrast checker → · Palette generator →