#3648A5#3648A5

#3648A5 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.3% C 0.151 H 270.7°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#3648A5
RGB	rgb(54, 72, 165)
HSL	hsl(230, 51%, 43%)
HSV	hsv(230, 67%, 65%)
CMYK	cmyk(67.3%, 56.4%, 0%, 35.3%)
CIE-LAB	lab(34.26, 24.24, -52.40)
CIE-LCH	lch(34.26, 57.74, 294.82°)
OKLab	oklab(44.26% 0.0019 -0.1507)
OKLCH	oklch(44.26% 0.151 270.7)
XYZ	xyz(10.6279, 8.1346, 36.6001)
Luminance	0.0814 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3648A5 #A59336

analogous

#3680A5 #3648A5 #5B36A5

triadic

#3648A5 #A53648 #48A536

tetradic

#3648A5 #A53680 #A59336 #36A55B

square

#3648A5 #A53680 #A59336 #36A55B

split-complementary

#3648A5 #A55B36 #80A536

monochromatic

#182049 #273477 #3648A5 #5265C6 #808ED5

Accessibility & contrast

On white

7.99

#3648A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3648A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3648A5

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3648A5	#FFFFFF	#000000	##FFFFFF
##3648A5	1.00	7.99	2.63	7.99
#FFFFFF	7.99	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056A8

Deuteranopia (green-blind)

#004CA3

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3648a5;
/* rgb */ color: rgb(54, 72, 165);
/* oklch */ color: oklch(44.3% 0.151 270.7);

Tailwind

colors: {
  custom: {
    50: '#7a7ac0',
    500: '#3648a5',
    950: '#000000',
  },
}

SCSS

$custom: #3648a5;
$custom-light: #7a7ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#3648a5",
  "rgb": {
    "r": 54,
    "g": 72,
    "b": 165
  },
  "hsl": {
    "h": 230.27,
    "s": 50.685,
    "l": 42.941
  },
  "oklch": {
    "l": 0.44256,
    "c": 0.15074,
    "h": 270.7
  },
  "luminance": 0.08136
}

Semantic roles & 50–950 ramp

primary

#3648A5

secondary

#BFB378

accent

#C34EDA

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3648A5

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

Preview Lab → · Contrast checker → · Palette generator →