#3B4BCB#3B4BCB

#3B4BCB is a mid, vivid blue. Relative luminance 0.103; OKLCH L 48.3% C 0.197 H 271.3°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#3B4BCB
RGB	rgb(59, 75, 203)
HSL	hsl(233, 58%, 51%)
HSV	hsv(233, 71%, 80%)
CMYK	cmyk(70.9%, 63.1%, 0%, 20.4%)
CIE-LAB	lab(38.33, 36.61, -68.16)
CIE-LCH	lch(38.33, 77.37, 298.24°)
OKLab	oklab(48.29% 0.0045 -0.1968)
OKLCH	oklch(48.29% 0.197 271.3)
XYZ	xyz(15.0955, 10.2722, 57.6755)
Luminance	0.1027 (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

#3B4BCB #CBBB3B

analogous

#3B93CB #3B4BCB #733BCB

triadic

#3B4BCB #CB3B4B #4BCB3B

tetradic

#3B4BCB #CB3B93 #CBBB3B #3BCB73

square

#3B4BCB #CB3B93 #CBBB3B #3BCB73

split-complementary

#3B4BCB #CB733B #93CB3B

monochromatic

#1D266E #2A379F #3B4BCB #6B77D8 #9CA4E5

Accessibility & contrast

On white

6.87

#3B4BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3B4BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B4BCB

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4BCB	#FFFFFF	#000000	##FFFFFF
##3B4BCB	1.00	6.87	3.05	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061CF

Deuteranopia (green-blind)

#0054C9

Tritanopia (blue-blind)

#006C84

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3b4bcb;
/* rgb */ color: rgb(59, 75, 203);
/* oklch */ color: oklch(48.3% 0.197 271.3);

Tailwind

colors: {
  custom: {
    50: '#847ddc',
    500: '#3b4bcb',
    950: '#000000',
  },
}

SCSS

$custom: #3b4bcb;
$custom-light: #847ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4bcb",
  "rgb": {
    "r": 59,
    "g": 75,
    "b": 203
  },
  "hsl": {
    "h": 233.333,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.48292,
    "c": 0.1969,
    "h": 271.3
  },
  "luminance": 0.10274
}

Semantic roles & 50–950 ramp

primary

#3B4BCB

secondary

#D1CA91

accent

#D047E1

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3B4BCB

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

Preview Lab → · Contrast checker → · Palette generator →