#345BB9#345BB9

#345BB9 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.6% C 0.155 H 264.5°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#345BB9
RGB	rgb(52, 91, 185)
HSL	hsl(222, 56%, 46%)
HSV	hsv(222, 72%, 73%)
CMYK	cmyk(71.9%, 50.8%, 0%, 27.5%)
CIE-LAB	lab(40.76, 18.85, -53.74)
CIE-LCH	lch(40.76, 56.95, 289.33°)
OKLab	oklab(49.59% -0.015 -0.1544)
OKLCH	oklch(49.59% 0.155 264.5)
XYZ	xyz(13.9111, 11.7136, 47.4173)
Luminance	0.1172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#345BB9 #B99234

analogous

#349EB9 #345BB9 #5034B9

triadic

#345BB9 #B9345B #5BB934

tetradic

#345BB9 #B9349E #B99234 #34B950

square

#345BB9 #B9349E #B99234 #34B950

split-complementary

#345BB9 #B95034 #9EB934

monochromatic

#192C59 #274489 #345BB9 #5A7DD1 #89A2DE

Accessibility & contrast

On white

6.28

#345BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#345BB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #345BB9

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##345BB9	#FFFFFF	#000000	##FFFFFF
##345BB9	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)

#2267BC

Deuteranopia (green-blind)

#005AB7

Tritanopia (blue-blind)

#007181

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #345bb9;
/* rgb */ color: rgb(52, 91, 185);
/* oklch */ color: oklch(49.6% 0.155 264.5);

Tailwind

colors: {
  custom: {
    50: '#7c88cf',
    500: '#345bb9',
    950: '#000000',
  },
}

SCSS

$custom: #345bb9;
$custom-light: #7c88cf;
$custom-dark: #000000;

JSON

{
  "hex": "#345bb9",
  "rgb": {
    "r": 52,
    "g": 91,
    "b": 185
  },
  "hsl": {
    "h": 222.406,
    "s": 56.118,
    "l": 46.471
  },
  "oklch": {
    "l": 0.49591,
    "c": 0.15514,
    "h": 264.5
  },
  "luminance": 0.11715
}

Semantic roles & 50–950 ramp

primary

#345BB9

secondary

#C8B381

accent

#B348DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #345BB9

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

Preview Lab → · Contrast checker → · Palette generator →