#3345AB#3345AB

#3345AB is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.0% C 0.164 H 270.5°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#3345AB
RGB	rgb(51, 69, 171)
HSL	hsl(231, 54%, 44%)
HSV	hsv(231, 70%, 67%)
CMYK	cmyk(70.2%, 59.6%, 0%, 32.9%)
CIE-LAB	lab(33.77, 27.95, -56.79)
CIE-LCH	lch(33.77, 63.30, 296.20°)
OKLab	oklab(43.99% 0.0015 -0.1637)
OKLCH	oklch(43.99% 0.164 270.5)
XYZ	xyz(10.8415, 7.8993, 39.4735)
Luminance	0.0790 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3345AB #AB9933

analogous

#3381AB #3345AB #5D33AB

triadic

#3345AB #AB3345 #45AB33

tetradic

#3345AB #AB3381 #AB9933 #33AB5D

square

#3345AB #AB3381 #AB9933 #33AB5D

split-complementary

#3345AB #AB5D33 #81AB33

monochromatic

#171F4D #25327C #3345AB #5063CB #7F8DD9

Accessibility & contrast

On white

8.14

#3345AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3345AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3345AB

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3345AB	#FFFFFF	#000000	##FFFFFF
##3345AB	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AE

Deuteranopia (green-blind)

#004AA9

Tritanopia (blue-blind)

#005E71

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3345ab;
/* rgb */ color: rgb(51, 69, 171);
/* oklch */ color: oklch(44.0% 0.164 270.5);

Tailwind

colors: {
  custom: {
    50: '#7a78c5',
    500: '#3345ab',
    950: '#000000',
  },
}

SCSS

$custom: #3345ab;
$custom-light: #7a78c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3345ab",
  "rgb": {
    "r": 51,
    "g": 69,
    "b": 171
  },
  "hsl": {
    "h": 231,
    "s": 54.054,
    "l": 43.529
  },
  "oklch": {
    "l": 0.43992,
    "c": 0.16376,
    "h": 270.5
  },
  "luminance": 0.079
}

Semantic roles & 50–950 ramp

primary

#3345AB

secondary

#C2B778

accent

#C74ADD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #3345AB

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

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