#3644CF#3644CF

#3644CF is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.2% C 0.211 H 271.0°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#3644CF
RGB	rgb(54, 68, 207)
HSL	hsl(235, 61%, 51%)
HSV	hsv(235, 74%, 81%)
CMYK	cmyk(73.9%, 67.1%, 0%, 18.8%)
CIE-LAB	lab(36.78, 41.76, -73.01)
CIE-LCH	lch(36.78, 84.11, 299.77°)
OKLab	oklab(47.2% 0.0035 -0.2112)
OKLCH	oklch(47.2% 0.211 271)
XYZ	xyz(14.8471, 9.4219, 60.0555)
Luminance	0.0942 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3644CF #CFC136

analogous

#3690CF #3644CF #7436CF

triadic

#3644CF #CF3644 #44CF36

tetradic

#3644CF #CF3690 #CFC136 #36CF74

square

#3644CF #CF3690 #CFC136 #36CF74

split-complementary

#3644CF #CF7436 #90CF36

monochromatic

#1B2370 #2732A1 #3644CF #6772DB #99A0E7

Accessibility & contrast

On white

7.28

#3644CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#3644CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3644CF

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3644CF	#FFFFFF	#000000	##FFFFFF
##3644CF	1.00	7.28	2.88	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED3

Deuteranopia (green-blind)

#004FCC

Tritanopia (blue-blind)

#006A84

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3644cf;
/* rgb */ color: rgb(54, 68, 207);
/* oklch */ color: oklch(47.2% 0.211 271.0);

Tailwind

colors: {
  custom: {
    50: '#8478df',
    500: '#3644cf',
    950: '#000000',
  },
}

SCSS

$custom: #3644cf;
$custom-light: #8478df;
$custom-dark: #000000;

JSON

{
  "hex": "#3644cf",
  "rgb": {
    "r": 54,
    "g": 68,
    "b": 207
  },
  "hsl": {
    "h": 234.51,
    "s": 61.446,
    "l": 51.176
  },
  "oklch": {
    "l": 0.47202,
    "c": 0.21124,
    "h": 271
  },
  "luminance": 0.09424
}

Semantic roles & 50–950 ramp

primary

#3644CF

secondary

#D2CC8F

accent

#D643E5

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #3644CF

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

Preview Lab → · Contrast checker → · Palette generator →