#3340A8#3340A8

#3340A8 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.8% C 0.166 H 271.9°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#3340A8
RGB	rgb(51, 64, 168)
HSL	hsl(233, 53%, 43%)
HSV	hsv(233, 70%, 66%)
CMYK	cmyk(69.6%, 61.9%, 0%, 34.1%)
CIE-LAB	lab(32.25, 30.13, -57.48)
CIE-LCH	lch(32.25, 64.90, 297.66°)
OKLab	oklab(42.79% 0.0055 -0.1658)
OKLCH	oklch(42.79% 0.166 271.9)
XYZ	xyz(10.2641, 7.1968, 37.8864)
Luminance	0.0720 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3340A8 #A89B33

analogous

#337BA8 #3340A8 #6033A8

triadic

#3340A8 #A83340 #40A833

tetradic

#3340A8 #A8337B #A89B33 #33A860

square

#3340A8 #A8337B #A89B33 #33A860

split-complementary

#3340A8 #A86033 #7BA833

monochromatic

#161C4A #252E79 #3340A8 #4F5CC9 #7E88D8

Accessibility & contrast

On white

8.61

#3340A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3340A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3340A8

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3340A8	#FFFFFF	#000000	##FFFFFF
##3340A8	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AB

Deuteranopia (green-blind)

#0047A6

Tritanopia (blue-blind)

#005A6E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3340a8;
/* rgb */ color: rgb(51, 64, 168);
/* oklch */ color: oklch(42.8% 0.166 271.9);

Tailwind

colors: {
  custom: {
    50: '#7a74c3',
    500: '#3340a8',
    950: '#000000',
  },
}

SCSS

$custom: #3340a8;
$custom-light: #7a74c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3340a8",
  "rgb": {
    "r": 51,
    "g": 64,
    "b": 168
  },
  "hsl": {
    "h": 233.333,
    "s": 53.425,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42789,
    "c": 0.16591,
    "h": 271.9
  },
  "luminance": 0.07198
}

Semantic roles & 50–950 ramp

primary

#3340A8

secondary

#C1B876

accent

#CD4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #3340A8

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

Preview Lab → · Contrast checker → · Palette generator →