#3451BC#3451BC

#3451BC is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.8% C 0.172 H 267.8°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#3451BC
RGB	rgb(52, 81, 188)
HSL	hsl(227, 57%, 47%)
HSV	hsv(227, 72%, 74%)
CMYK	cmyk(72.3%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(38.28, 26.49, -59.51)
CIE-LCH	lch(38.28, 65.14, 293.99°)
OKLab	oklab(47.79% -0.0066 -0.1716)
OKLCH	oklch(47.79% 0.172 267.8)
XYZ	xyz(13.4326, 10.2444, 48.8366)
Luminance	0.1025 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3451BC #BC9F34

analogous

#3495BC #3451BC #5B34BC

triadic

#3451BC #BC3451 #51BC34

tetradic

#3451BC #BC3495 #BC9F34 #34BC5B

square

#3451BC #BC3495 #BC9F34 #34BC5B

split-complementary

#3451BC #BC5B34 #95BC34

monochromatic

#19285C #273C8C #3451BC #5B75D2 #8B9DDF

Accessibility & contrast

On white

6.89

#3451BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3451BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3451BC

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3451BC	#FFFFFF	#000000	##FFFFFF
##3451BC	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C0

Deuteranopia (green-blind)

#0054BA

Tritanopia (blue-blind)

#006B7E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3451bc;
/* rgb */ color: rgb(52, 81, 188);
/* oklch */ color: oklch(47.8% 0.172 267.8);

Tailwind

colors: {
  custom: {
    50: '#7e81d1',
    500: '#3451bc',
    950: '#000000',
  },
}

SCSS

$custom: #3451bc;
$custom-light: #7e81d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3451bc",
  "rgb": {
    "r": 52,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 227.206,
    "s": 56.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.47786,
    "c": 0.17169,
    "h": 267.8
  },
  "luminance": 0.10246
}

Semantic roles & 50–950 ramp

primary

#3451BC

secondary

#C9BA83

accent

#C048E0

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3451BC

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

Preview Lab → · Contrast checker → · Palette generator →