#345BBB#345BBB

#345BBB is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.7% C 0.158 H 264.6°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#345BBB
RGB	rgb(52, 91, 187)
HSL	hsl(223, 56%, 47%)
HSV	hsv(223, 72%, 73%)
CMYK	cmyk(72.2%, 51.3%, 0%, 26.7%)
CIE-LAB	lab(40.89, 19.60, -54.69)
CIE-LCH	lch(40.89, 58.09, 289.72°)
OKLab	oklab(49.74% -0.0147 -0.1572)
OKLCH	oklch(49.74% 0.158 264.6)
XYZ	xyz(14.1237, 11.7986, 48.5371)
Luminance	0.1180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#345BBB #BB9434

analogous

#349EBB #345BBB #5134BB

triadic

#345BBB #BB345B #5BBB34

tetradic

#345BBB #BB349E #BB9434 #34BB51

square

#345BBB #BB349E #BB9434 #34BB51

split-complementary

#345BBB #BB5134 #9EBB34

monochromatic

#192C5B #27448B #345BBB #5B7DD1 #8BA3DF

Accessibility & contrast

On white

6.25

#345BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#345BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #345BBB

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##345BBB	#FFFFFF	#000000	##FFFFFF
##345BBB	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F67BE

Deuteranopia (green-blind)

#005BB9

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #345bbb;
/* rgb */ color: rgb(52, 91, 187);
/* oklch */ color: oklch(49.7% 0.158 264.6);

Tailwind

colors: {
  custom: {
    50: '#7d88d0',
    500: '#345bbb',
    950: '#000000',
  },
}

SCSS

$custom: #345bbb;
$custom-light: #7d88d0;
$custom-dark: #000000;

JSON

{
  "hex": "#345bbb",
  "rgb": {
    "r": 52,
    "g": 91,
    "b": 187
  },
  "hsl": {
    "h": 222.667,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.49739,
    "c": 0.1579,
    "h": 264.6
  },
  "luminance": 0.118
}

Semantic roles & 50–950 ramp

primary

#345BBB

secondary

#C9B482

accent

#B448E0

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #345BBB

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

Preview Lab → · Contrast checker → · Palette generator →