#3451B5#3451B5

#3451B5 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.2% C 0.162 H 267.5°. Best body text is #FFFFFF at 7.02:1 contrast (WCAG AA passes).

Color values

HEX	#3451B5
RGB	rgb(52, 81, 181)
HSL	hsl(227, 55%, 46%)
HSV	hsv(227, 71%, 71%)
CMYK	cmyk(71.3%, 55.2%, 0%, 29%)
CIE-LAB	lab(37.75, 23.90, -56.25)
CIE-LCH	lch(37.75, 61.12, 293.02°)
OKLab	oklab(47.23% -0.0069 -0.162)
OKLCH	oklch(47.23% 0.162 267.5)
XYZ	xyz(12.6962, 9.9498, 44.9585)
Luminance	0.0995 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3451B5 #B59834

analogous

#3491B5 #3451B5 #5834B5

triadic

#3451B5 #B53451 #51B534

tetradic

#3451B5 #B53491 #B59834 #34B558

square

#3451B5 #B53491 #B59834 #34B558

split-complementary

#3451B5 #B55834 #91B534

monochromatic

#192656 #263C85 #3451B5 #5772CF #879ADC

Accessibility & contrast

On white

7.02

#3451B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#3451B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3451B5

7.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3451B5	#FFFFFF	#000000	##FFFFFF
##3451B5	1.00	7.02	2.99	7.02
#FFFFFF	7.02	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FB8

Deuteranopia (green-blind)

#0053B3

Tritanopia (blue-blind)

#00697B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3451b5;
/* rgb */ color: rgb(52, 81, 181);
/* oklch */ color: oklch(47.2% 0.162 267.5);

Tailwind

colors: {
  custom: {
    50: '#7c81cc',
    500: '#3451b5',
    950: '#000000',
  },
}

SCSS

$custom: #3451b5;
$custom-light: #7c81cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3451b5",
  "rgb": {
    "r": 52,
    "g": 81,
    "b": 181
  },
  "hsl": {
    "h": 226.512,
    "s": 55.365,
    "l": 45.686
  },
  "oklch": {
    "l": 0.47226,
    "c": 0.16213,
    "h": 267.5
  },
  "luminance": 0.09951
}

Semantic roles & 50–950 ramp

primary

#3451B5

secondary

#C6B67F

accent

#BD49DF

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3451B5

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

Preview Lab → · Contrast checker → · Palette generator →