#345CB1#345CB1

#345CB1 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.2% C 0.143 H 263.2°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#345CB1
RGB	rgb(52, 92, 177)
HSL	hsl(221, 55%, 45%)
HSV	hsv(221, 71%, 69%)
CMYK	cmyk(70.6%, 48%, 0%, 30.6%)
CIE-LAB	lab(40.50, 15.22, -49.45)
CIE-LCH	lch(40.50, 51.74, 287.11°)
OKLab	oklab(49.23% -0.0169 -0.1418)
OKLCH	oklch(49.23% 0.143 263.2)
XYZ	xyz(13.1763, 11.5573, 43.1228)
Luminance	0.1156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#345CB1 #B18934

analogous

#349BB1 #345CB1 #4B34B1

triadic

#345CB1 #B1345C #5CB134

tetradic

#345CB1 #B1349B #B18934 #34B14B

square

#345CB1 #B1349B #B18934 #34B14B

split-complementary

#345CB1 #B14B34 #9BB134

monochromatic

#182B52 #264382 #345CB1 #557CCD #84A0DB

Accessibility & contrast

On white

6.34

#345CB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#345CB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #345CB1

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##345CB1	#FFFFFF	#000000	##FFFFFF
##345CB1	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E66B4

Deuteranopia (green-blind)

#0E5AAF

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #345cb1;
/* rgb */ color: rgb(52, 92, 177);
/* oklch */ color: oklch(49.2% 0.143 263.2);

Tailwind

colors: {
  custom: {
    50: '#7b89c9',
    500: '#345cb1',
    950: '#000000',
  },
}

SCSS

$custom: #345cb1;
$custom-light: #7b89c9;
$custom-dark: #000000;

JSON

{
  "hex": "#345cb1",
  "rgb": {
    "r": 52,
    "g": 92,
    "b": 177
  },
  "hsl": {
    "h": 220.8,
    "s": 54.585,
    "l": 44.902
  },
  "oklch": {
    "l": 0.49227,
    "c": 0.1428,
    "h": 263.2
  },
  "luminance": 0.11559
}

Semantic roles & 50–950 ramp

primary

#345CB1

secondary

#C5AD7C

accent

#AF4ADE

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #345CB1

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

Preview Lab → · Contrast checker → · Palette generator →