#3451BF#3451BF

#3451BF is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.0% C 0.176 H 267.9°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#3451BF
RGB	rgb(52, 81, 191)
HSL	hsl(227, 57%, 48%)
HSV	hsv(227, 73%, 75%)
CMYK	cmyk(72.8%, 57.6%, 0%, 25.1%)
CIE-LAB	lab(38.51, 27.59, -60.89)
CIE-LCH	lch(38.51, 66.85, 294.38°)
OKLab	oklab(48.03% -0.0065 -0.1756)
OKLCH	oklch(48.03% 0.176 267.9)
XYZ	xyz(13.7593, 10.3751, 50.5576)
Luminance	0.1038 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3451BF #BFA234

analogous

#3497BF #3451BF #5C34BF

triadic

#3451BF #BF3451 #51BF34

tetradic

#3451BF #BF3497 #BFA234 #34BF5C

square

#3451BF #BF3497 #BFA234 #34BF5C

split-complementary

#3451BF #BF5C34 #97BF34

monochromatic

#1A285F #273D8F #3451BF #5D76D3 #8D9FE0

Accessibility & contrast

On white

6.83

#3451BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3451BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3451BF

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3451BF	#FFFFFF	#000000	##FFFFFF
##3451BF	1.00	6.83	3.08	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C3

Deuteranopia (green-blind)

#0054BD

Tritanopia (blue-blind)

#006C80

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3451bf;
/* rgb */ color: rgb(52, 81, 191);
/* oklch */ color: oklch(48.0% 0.176 267.9);

Tailwind

colors: {
  custom: {
    50: '#7e81d3',
    500: '#3451bf',
    950: '#000000',
  },
}

SCSS

$custom: #3451bf;
$custom-light: #7e81d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3451bf",
  "rgb": {
    "r": 52,
    "g": 81,
    "b": 191
  },
  "hsl": {
    "h": 227.482,
    "s": 57.202,
    "l": 47.647
  },
  "oklch": {
    "l": 0.4803,
    "c": 0.17574,
    "h": 267.9
  },
  "luminance": 0.10377
}

Semantic roles & 50–950 ramp

primary

#3451BF

secondary

#CABC84

accent

#C147E0

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3451BF

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

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