#345BB3#345BB3

#345BB3 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.2% C 0.147 H 263.8°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#345BB3
RGB	rgb(52, 91, 179)
HSL	hsl(222, 55%, 45%)
HSV	hsv(222, 71%, 70%)
CMYK	cmyk(70.9%, 49.2%, 0%, 29.8%)
CIE-LAB	lab(40.35, 16.62, -50.87)
CIE-LCH	lch(40.35, 53.52, 288.09°)
OKLab	oklab(49.15% -0.0157 -0.146)
OKLCH	oklch(49.15% 0.147 263.8)
XYZ	xyz(13.2911, 11.4655, 44.1517)
Luminance	0.1147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#345BB3 #B38C34

analogous

#349AB3 #345BB3 #4D34B3

triadic

#345BB3 #B3345B #5BB334

tetradic

#345BB3 #B3349A #B38C34 #34B34D

square

#345BB3 #B3349A #B38C34 #34B34D

split-complementary

#345BB3 #B34D34 #9AB334

monochromatic

#182B54 #264384 #345BB3 #567BCE #86A0DC

Accessibility & contrast

On white

6.38

#345BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#345BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #345BB3

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##345BB3	#FFFFFF	#000000	##FFFFFF
##345BB3	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A65B6

Deuteranopia (green-blind)

#005AB1

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #345bb3;
/* rgb */ color: rgb(52, 91, 179);
/* oklch */ color: oklch(49.2% 0.147 263.8);

Tailwind

colors: {
  custom: {
    50: '#7b88ca',
    500: '#345bb3',
    950: '#000000',
  },
}

SCSS

$custom: #345bb3;
$custom-light: #7b88ca;
$custom-dark: #000000;

JSON

{
  "hex": "#345bb3",
  "rgb": {
    "r": 52,
    "g": 91,
    "b": 179
  },
  "hsl": {
    "h": 221.575,
    "s": 54.978,
    "l": 45.294
  },
  "oklch": {
    "l": 0.49154,
    "c": 0.14683,
    "h": 263.8
  },
  "luminance": 0.11467
}

Semantic roles & 50–950 ramp

primary

#345BB3

secondary

#C5AF7D

accent

#B149DE

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #345BB3

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

Preview Lab → · Contrast checker → · Palette generator →