#3455BB#3455BB

#3455BB is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.5% C 0.165 H 266.6°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#3455BB
RGB	rgb(52, 85, 187)
HSL	hsl(225, 56%, 47%)
HSV	hsv(225, 72%, 73%)
CMYK	cmyk(72.2%, 54.5%, 0%, 26.7%)
CIE-LAB	lab(39.26, 23.51, -57.32)
CIE-LCH	lch(39.26, 61.96, 292.30°)
OKLab	oklab(48.51% -0.0098 -0.1651)
OKLCH	oklch(48.51% 0.165 266.6)
XYZ	xyz(13.6312, 10.8135, 48.3729)
Luminance	0.1081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3455BB #BB9A34

analogous

#3499BB #3455BB #5634BB

triadic

#3455BB #BB3455 #55BB34

tetradic

#3455BB #BB3499 #BB9A34 #34BB56

square

#3455BB #BB3499 #BB9A34 #34BB56

split-complementary

#3455BB #BB5634 #99BB34

monochromatic

#19295B #273F8B #3455BB #5B78D1 #8B9FDF

Accessibility & contrast

On white

6.64

#3455BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#3455BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3455BB

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3455BB	#FFFFFF	#000000	##FFFFFF
##3455BB	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063BF

Deuteranopia (green-blind)

#0057B9

Tritanopia (blue-blind)

#006E7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3455bb;
/* rgb */ color: rgb(52, 85, 187);
/* oklch */ color: oklch(48.5% 0.165 266.6);

Tailwind

colors: {
  custom: {
    50: '#7d84d0',
    500: '#3455bb',
    950: '#000000',
  },
}

SCSS

$custom: #3455bb;
$custom-light: #7d84d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3455bb",
  "rgb": {
    "r": 52,
    "g": 85,
    "b": 187
  },
  "hsl": {
    "h": 225.333,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.48505,
    "c": 0.16536,
    "h": 266.6
  },
  "luminance": 0.10815
}

Semantic roles & 50–950 ramp

primary

#3455BB

secondary

#C9B882

accent

#BB48E0

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3455BB

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

Preview Lab → · Contrast checker → · Palette generator →