#3641AA#3641AA

#3641AA is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.3% C 0.167 H 272.7°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#3641AA
RGB	rgb(54, 65, 170)
HSL	hsl(234, 52%, 44%)
HSV	hsv(234, 68%, 67%)
CMYK	cmyk(68.2%, 61.8%, 0%, 33.3%)
CIE-LAB	lab(32.85, 30.62, -57.70)
CIE-LCH	lch(32.85, 65.32, 297.95°)
OKLab	oklab(43.33% 0.0079 -0.1664)
OKLCH	oklch(43.33% 0.167 272.7)
XYZ	xyz(10.6649, 7.4662, 38.9015)
Luminance	0.0747 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3641AA #AA9F36

analogous

#367BAA #3641AA #6536AA

triadic

#3641AA #AA3641 #41AA36

tetradic

#3641AA #AA367B #AA9F36 #36AA65

square

#3641AA #AA367B #AA9F36 #36AA65

split-complementary

#3641AA #AA6536 #7BAA36

monochromatic

#181D4D #272F7C #3641AA #545FC9 #838BD8

Accessibility & contrast

On white

8.42

#3641AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3641AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3641AA

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3641AA	#FFFFFF	#000000	##FFFFFF
##3641AA	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AD

Deuteranopia (green-blind)

#0048A8

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3641aa;
/* rgb */ color: rgb(54, 65, 170);
/* oklch */ color: oklch(43.3% 0.167 272.7);

Tailwind

colors: {
  custom: {
    50: '#7c75c4',
    500: '#3641aa',
    950: '#000000',
  },
}

SCSS

$custom: #3641aa;
$custom-light: #7c75c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3641aa",
  "rgb": {
    "r": 54,
    "g": 65,
    "b": 170
  },
  "hsl": {
    "h": 234.31,
    "s": 51.786,
    "l": 43.922
  },
  "oklch": {
    "l": 0.43327,
    "c": 0.16657,
    "h": 272.7
  },
  "luminance": 0.07467
}

Semantic roles & 50–950 ramp

primary

#3641AA

secondary

#C1BA7B

accent

#CE4DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3641AA

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

Preview Lab → · Contrast checker → · Palette generator →