#345FBB#345FBB

#345FBB is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.6% C 0.153 H 263.2°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#345FBB
RGB	rgb(52, 95, 187)
HSL	hsl(221, 56%, 47%)
HSV	hsv(221, 72%, 73%)
CMYK	cmyk(72.2%, 49.2%, 0%, 26.7%)
CIE-LAB	lab(42.00, 17.00, -52.90)
CIE-LCH	lch(42.00, 55.57, 287.82°)
OKLab	oklab(50.58% -0.0182 -0.1519)
OKLCH	oklch(50.58% 0.153 263.2)
XYZ	xyz(14.4748, 12.5008, 48.6541)
Luminance	0.1250 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#345FBB #BB9034

analogous

#34A3BB #345FBB #4D34BB

triadic

#345FBB #BB345F #5FBB34

tetradic

#345FBB #BB34A3 #BB9034 #34BB4D

square

#345FBB #BB34A3 #BB9034 #34BB4D

split-complementary

#345FBB #BB4D34 #A3BB34

monochromatic

#192E5B #27478B #345FBB #5B81D1 #8BA5DF

Accessibility & contrast

On white

6.00

#345FBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#345FBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #345FBB

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##345FBB	#FFFFFF	#000000	##FFFFFF
##345FBB	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B6ABE

Deuteranopia (green-blind)

#005DB9

Tritanopia (blue-blind)

#007584

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #345fbb;
/* rgb */ color: rgb(52, 95, 187);
/* oklch */ color: oklch(50.6% 0.153 263.2);

Tailwind

colors: {
  custom: {
    50: '#7d8bd0',
    500: '#345fbb',
    950: '#000000',
  },
}

SCSS

$custom: #345fbb;
$custom-light: #7d8bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#345fbb",
  "rgb": {
    "r": 52,
    "g": 95,
    "b": 187
  },
  "hsl": {
    "h": 220.889,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.50582,
    "c": 0.15296,
    "h": 263.2
  },
  "luminance": 0.12502
}

Semantic roles & 50–950 ramp

primary

#345FBB

secondary

#C9B282

accent

#AF48E0

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #345FBB

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

Preview Lab → · Contrast checker → · Palette generator →