#3634BF#3634BF

#3634BF is a dark, highly saturated blue. Relative luminance 0.070; OKLCH L 43.2% C 0.208 H 273.9°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#3634BF
RGB	rgb(54, 52, 191)
HSL	hsl(241, 57%, 48%)
HSV	hsv(241, 73%, 75%)
CMYK	cmyk(71.7%, 72.8%, 0%, 25.1%)
CIE-LAB	lab(31.81, 45.80, -71.86)
CIE-LCH	lch(31.81, 85.22, 302.51°)
OKLab	oklab(43.16% 0.0143 -0.2078)
OKLCH	oklch(43.16% 0.208 273.9)
XYZ	xyz(12.1502, 7.0006, 49.9910)
Luminance	0.0700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.08

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3634BF #BDBF34

analogous

#3478BF #3634BF #7B34BF

triadic

#3634BF #BF3634 #34BF36

tetradic

#3634BF #BF3478 #BDBF34 #34BF7B

square

#3634BF #BF3478 #BDBF34 #34BF7B

split-complementary

#3634BF #BF7B34 #78BF34

monochromatic

#1B1A5F #28278F #3634BF #5F5DD3 #8F8DE0

Accessibility & contrast

On white

8.75

#3634BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3634BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3634BF

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3634BF	#FFFFFF	#000000	##FFFFFF
##3634BF	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C3

Deuteranopia (green-blind)

#0044BC

Tritanopia (blue-blind)

#005C76

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3634bf;
/* rgb */ color: rgb(54, 52, 191);
/* oklch */ color: oklch(43.2% 0.208 273.9);

Tailwind

colors: {
  custom: {
    50: '#816dd4',
    500: '#3634bf',
    950: '#000000',
  },
}

SCSS

$custom: #3634bf;
$custom-light: #816dd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3634bf",
  "rgb": {
    "r": 54,
    "g": 52,
    "b": 191
  },
  "hsl": {
    "h": 240.863,
    "s": 57.202,
    "l": 47.647
  },
  "oklch": {
    "l": 0.43159,
    "c": 0.20833,
    "h": 273.9
  },
  "luminance": 0.07002
}

Semantic roles & 50–950 ramp

primary

#3634BF

secondary

#C9CA84

accent

#E047DE

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3634BF

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

Preview Lab → · Contrast checker → · Palette generator →