#3648A6#3648A6

#3648A6 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.3% C 0.152 H 270.7°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#3648A6
RGB	rgb(54, 72, 166)
HSL	hsl(230, 51%, 43%)
HSV	hsv(230, 67%, 65%)
CMYK	cmyk(67.5%, 56.6%, 0%, 34.9%)
CIE-LAB	lab(34.34, 24.60, -52.88)
CIE-LCH	lch(34.34, 58.32, 294.95°)
OKLab	oklab(44.34% 0.0019 -0.1521)
OKLCH	oklch(44.34% 0.152 270.7)
XYZ	xyz(10.7193, 8.1712, 37.0813)
Luminance	0.0817 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3648A6 #A69436

analogous

#3680A6 #3648A6 #5C36A6

triadic

#3648A6 #A63648 #48A636

tetradic

#3648A6 #A63680 #A69436 #36A65C

square

#3648A6 #A63680 #A69436 #36A65C

split-complementary

#3648A6 #A65C36 #80A636

monochromatic

#18204A #273478 #3648A6 #5265C7 #818ED6

Accessibility & contrast

On white

7.97

#3648A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3648A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3648A6

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3648A6	#FFFFFF	#000000	##FFFFFF
##3648A6	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056A9

Deuteranopia (green-blind)

#004CA4

Tritanopia (blue-blind)

#005F70

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3648a6;
/* rgb */ color: rgb(54, 72, 166);
/* oklch */ color: oklch(44.3% 0.152 270.7);

Tailwind

colors: {
  custom: {
    50: '#7a7ac1',
    500: '#3648a6',
    950: '#000000',
  },
}

SCSS

$custom: #3648a6;
$custom-light: #7a7ac1;
$custom-dark: #000000;

JSON

{
  "hex": "#3648a6",
  "rgb": {
    "r": 54,
    "g": 72,
    "b": 166
  },
  "hsl": {
    "h": 230.357,
    "s": 50.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.44336,
    "c": 0.15215,
    "h": 270.7
  },
  "luminance": 0.08172
}

Semantic roles & 50–950 ramp

primary

#3648A6

secondary

#BFB479

accent

#C44DDA

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3648A6

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

Preview Lab → · Contrast checker → · Palette generator →