#3451BD#3451BD

#3451BD is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.9% C 0.173 H 267.8°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#3451BD
RGB	rgb(52, 81, 189)
HSL	hsl(227, 57%, 47%)
HSV	hsv(227, 72%, 74%)
CMYK	cmyk(72.5%, 57.1%, 0%, 25.9%)
CIE-LAB	lab(38.35, 26.86, -59.97)
CIE-LCH	lch(38.35, 65.71, 294.12°)
OKLab	oklab(47.87% -0.0065 -0.1729)
OKLCH	oklch(47.87% 0.173 267.8)
XYZ	xyz(13.5407, 10.2876, 49.4063)
Luminance	0.1029 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3451BD #BDA034

analogous

#3496BD #3451BD #5B34BD

triadic

#3451BD #BD3451 #51BD34

tetradic

#3451BD #BD3496 #BDA034 #34BD5B

square

#3451BD #BD3496 #BDA034 #34BD5B

split-complementary

#3451BD #BD5B34 #96BD34

monochromatic

#1A285D #273C8D #3451BD #5C75D2 #8C9EDF

Accessibility & contrast

On white

6.87

#3451BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#3451BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3451BD

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3451BD	#FFFFFF	#000000	##FFFFFF
##3451BD	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C1

Deuteranopia (green-blind)

#0054BB

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3451bd;
/* rgb */ color: rgb(52, 81, 189);
/* oklch */ color: oklch(47.9% 0.173 267.8);

Tailwind

colors: {
  custom: {
    50: '#7e81d2',
    500: '#3451bd',
    950: '#000000',
  },
}

SCSS

$custom: #3451bd;
$custom-light: #7e81d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3451bd",
  "rgb": {
    "r": 52,
    "g": 81,
    "b": 189
  },
  "hsl": {
    "h": 227.299,
    "s": 56.846,
    "l": 47.255
  },
  "oklch": {
    "l": 0.47867,
    "c": 0.17304,
    "h": 267.8
  },
  "luminance": 0.10289
}

Semantic roles & 50–950 ramp

primary

#3451BD

secondary

#CABB83

accent

#C048E0

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3451BD

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

Preview Lab → · Contrast checker → · Palette generator →