#3345A8#3345A8

#3345A8 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.7% C 0.160 H 270.5°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#3345A8
RGB	rgb(51, 69, 168)
HSL	hsl(231, 53%, 43%)
HSV	hsv(231, 70%, 66%)
CMYK	cmyk(69.6%, 58.9%, 0%, 34.1%)
CIE-LAB	lab(33.53, 26.85, -55.39)
CIE-LCH	lch(33.53, 61.56, 295.86°)
OKLab	oklab(43.74% 0.0015 -0.1596)
OKLCH	oklch(43.74% 0.16 270.5)
XYZ	xyz(10.5588, 7.7862, 37.9846)
Luminance	0.0779 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3345A8 #A89633

analogous

#3380A8 #3345A8 #5B33A8

triadic

#3345A8 #A83345 #45A833

tetradic

#3345A8 #A83380 #A89633 #33A85B

square

#3345A8 #A83380 #A89633 #33A85B

split-complementary

#3345A8 #A85B33 #80A833

monochromatic

#161E4A #253279 #3345A8 #4F62C9 #7E8CD8

Accessibility & contrast

On white

8.21

#3345A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3345A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3345A8

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3345A8	#FFFFFF	#000000	##FFFFFF
##3345A8	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AB

Deuteranopia (green-blind)

#004AA6

Tritanopia (blue-blind)

#005D6F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3345a8;
/* rgb */ color: rgb(51, 69, 168);
/* oklch */ color: oklch(43.7% 0.160 270.5);

Tailwind

colors: {
  custom: {
    50: '#7a78c3',
    500: '#3345a8',
    950: '#000000',
  },
}

SCSS

$custom: #3345a8;
$custom-light: #7a78c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3345a8",
  "rgb": {
    "r": 51,
    "g": 69,
    "b": 168
  },
  "hsl": {
    "h": 230.769,
    "s": 53.425,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4374,
    "c": 0.15963,
    "h": 270.5
  },
  "luminance": 0.07787
}

Semantic roles & 50–950 ramp

primary

#3345A8

secondary

#C1B576

accent

#C64BDD

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3345A8

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

Preview Lab → · Contrast checker → · Palette generator →