#3345AA#3345AA

#3345AA is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.9% C 0.162 H 270.5°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#3345AA
RGB	rgb(51, 69, 170)
HSL	hsl(231, 54%, 43%)
HSV	hsv(231, 70%, 67%)
CMYK	cmyk(70%, 59.4%, 0%, 33.3%)
CIE-LAB	lab(33.69, 27.59, -56.33)
CIE-LCH	lch(33.69, 62.72, 296.09°)
OKLab	oklab(43.91% 0.0015 -0.1624)
OKLCH	oklch(43.91% 0.162 270.5)
XYZ	xyz(10.7466, 7.8613, 38.9734)
Luminance	0.0786 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3345AA #AA9833

analogous

#3380AA #3345AA #5C33AA

triadic

#3345AA #AA3345 #45AA33

tetradic

#3345AA #AA3380 #AA9833 #33AA5C

square

#3345AA #AA3380 #AA9833 #33AA5C

split-complementary

#3345AA #AA5C33 #80AA33

monochromatic

#171F4C #25327B #3345AA #5062CA #7F8CD9

Accessibility & contrast

On white

8.16

#3345AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3345AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3345AA

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3345AA	#FFFFFF	#000000	##FFFFFF
##3345AA	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AD

Deuteranopia (green-blind)

#004AA8

Tritanopia (blue-blind)

#005E70

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3345aa;
/* rgb */ color: rgb(51, 69, 170);
/* oklch */ color: oklch(43.9% 0.162 270.5);

Tailwind

colors: {
  custom: {
    50: '#7a78c4',
    500: '#3345aa',
    950: '#000000',
  },
}

SCSS

$custom: #3345aa;
$custom-light: #7a78c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3345aa",
  "rgb": {
    "r": 51,
    "g": 69,
    "b": 170
  },
  "hsl": {
    "h": 230.924,
    "s": 53.846,
    "l": 43.333
  },
  "oklch": {
    "l": 0.43908,
    "c": 0.16239,
    "h": 270.5
  },
  "luminance": 0.07862
}

Semantic roles & 50–950 ramp

primary

#3345AA

secondary

#C2B677

accent

#C74BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #3345AA

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

Preview Lab → · Contrast checker → · Palette generator →