#3648A4#3648A4

#3648A4 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.2% C 0.149 H 270.7°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#3648A4
RGB	rgb(54, 72, 164)
HSL	hsl(230, 50%, 43%)
HSV	hsv(230, 67%, 64%)
CMYK	cmyk(67.1%, 56.1%, 0%, 35.7%)
CIE-LAB	lab(34.19, 23.87, -51.92)
CIE-LCH	lch(34.19, 57.15, 294.69°)
OKLab	oklab(44.18% 0.0019 -0.1493)
OKLCH	oklch(44.18% 0.149 270.7)
XYZ	xyz(10.5373, 8.0984, 36.1226)
Luminance	0.0810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3648A4 #A49236

analogous

#367FA4 #3648A4 #5B36A4

triadic

#3648A4 #A43648 #48A436

tetradic

#3648A4 #A4367F #A49236 #36A45B

square

#3648A4 #A4367F #A49236 #36A45B

split-complementary

#3648A4 #A45B36 #7FA436

monochromatic

#182048 #273476 #3648A4 #5164C6 #7F8DD5

Accessibility & contrast

On white

8.02

#3648A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3648A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3648A4

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3648A4	#FFFFFF	#000000	##FFFFFF
##3648A4	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056A7

Deuteranopia (green-blind)

#004CA2

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3648a4;
/* rgb */ color: rgb(54, 72, 164);
/* oklch */ color: oklch(44.2% 0.149 270.7);

Tailwind

colors: {
  custom: {
    50: '#7a7ac0',
    500: '#3648a4',
    950: '#000000',
  },
}

SCSS

$custom: #3648a4;
$custom-light: #7a7ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#3648a4",
  "rgb": {
    "r": 54,
    "g": 72,
    "b": 164
  },
  "hsl": {
    "h": 230.182,
    "s": 50.459,
    "l": 42.745
  },
  "oklch": {
    "l": 0.44177,
    "c": 0.14934,
    "h": 270.7
  },
  "luminance": 0.08099
}

Semantic roles & 50–950 ramp

primary

#3648A4

secondary

#BEB378

accent

#C34EDA

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3648A4

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

Preview Lab → · Contrast checker → · Palette generator →