#345BB0#345BB0

#345BB0 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.9% C 0.143 H 263.5°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#345BB0
RGB	rgb(52, 91, 176)
HSL	hsl(221, 54%, 45%)
HSV	hsv(221, 70%, 69%)
CMYK	cmyk(70.5%, 48.3%, 0%, 31%)
CIE-LAB	lab(40.16, 15.50, -49.42)
CIE-LCH	lch(40.16, 51.80, 287.41°)
OKLab	oklab(48.94% -0.0161 -0.1417)
OKLCH	oklch(48.94% 0.143 263.5)
XYZ	xyz(12.9910, 11.3455, 42.5711)
Luminance	0.1135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#345BB0 #B08934

analogous

#3499B0 #345BB0 #4B34B0

triadic

#345BB0 #B0345B #5BB034

tetradic

#345BB0 #B03499 #B08934 #34B04B

square

#345BB0 #B03499 #B08934 #34B04B

split-complementary

#345BB0 #B04B34 #99B034

monochromatic

#182A52 #264381 #345BB0 #557ACD #849FDB

Accessibility & contrast

On white

6.42

#345BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#345BB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #345BB0

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##345BB0	#FFFFFF	#000000	##FFFFFF
##345BB0	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D65B3

Deuteranopia (green-blind)

#0C59AE

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #345bb0;
/* rgb */ color: rgb(52, 91, 176);
/* oklch */ color: oklch(48.9% 0.143 263.5);

Tailwind

colors: {
  custom: {
    50: '#7b88c8',
    500: '#345bb0',
    950: '#000000',
  },
}

SCSS

$custom: #345bb0;
$custom-light: #7b88c8;
$custom-dark: #000000;

JSON

{
  "hex": "#345bb0",
  "rgb": {
    "r": 52,
    "g": 91,
    "b": 176
  },
  "hsl": {
    "h": 221.129,
    "s": 54.386,
    "l": 44.706
  },
  "oklch": {
    "l": 0.4894,
    "c": 0.14264,
    "h": 263.5
  },
  "luminance": 0.11347
}

Semantic roles & 50–950 ramp

primary

#345BB0

secondary

#C4AD7C

accent

#AF4ADE

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #345BB0

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

Preview Lab → · Contrast checker → · Palette generator →