#345BB5#345BB5

#345BB5 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.3% C 0.150 H 264.1°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#345BB5
RGB	rgb(52, 91, 181)
HSL	hsl(222, 55%, 46%)
HSV	hsv(222, 71%, 71%)
CMYK	cmyk(71.3%, 49.7%, 0%, 29%)
CIE-LAB	lab(40.49, 17.37, -51.83)
CIE-LCH	lch(40.49, 54.66, 288.52°)
OKLab	oklab(49.3% -0.0155 -0.1488)
OKLCH	oklch(49.3% 0.15 264.1)
XYZ	xyz(13.4948, 11.5470, 45.2247)
Luminance	0.1155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#345BB5 #B58E34

analogous

#349CB5 #345BB5 #4D34B5

triadic

#345BB5 #B5345B #5BB534

tetradic

#345BB5 #B5349C #B58E34 #34B54D

square

#345BB5 #B5349C #B58E34 #34B54D

split-complementary

#345BB5 #B54D34 #9CB534

monochromatic

#192B56 #264385 #345BB5 #577BCF #87A1DC

Accessibility & contrast

On white

6.35

#345BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#345BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #345BB5

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##345BB5	#FFFFFF	#000000	##FFFFFF
##345BB5	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2766B8

Deuteranopia (green-blind)

#005AB3

Tritanopia (blue-blind)

#00707F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #345bb5;
/* rgb */ color: rgb(52, 91, 181);
/* oklch */ color: oklch(49.3% 0.150 264.1);

Tailwind

colors: {
  custom: {
    50: '#7c88cc',
    500: '#345bb5',
    950: '#000000',
  },
}

SCSS

$custom: #345bb5;
$custom-light: #7c88cc;
$custom-dark: #000000;

JSON

{
  "hex": "#345bb5",
  "rgb": {
    "r": 52,
    "g": 91,
    "b": 181
  },
  "hsl": {
    "h": 221.86,
    "s": 55.365,
    "l": 45.686
  },
  "oklch": {
    "l": 0.49298,
    "c": 0.14961,
    "h": 264.1
  },
  "luminance": 0.11548
}

Semantic roles & 50–950 ramp

primary

#345BB5

secondary

#C6B17F

accent

#B149DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #345BB5

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

Preview Lab → · Contrast checker → · Palette generator →