#3B4BBD#3B4BBD

#3B4BBD is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.1% C 0.178 H 271.6°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#3B4BBD
RGB	rgb(59, 75, 189)
HSL	hsl(233, 52%, 49%)
HSV	hsv(233, 69%, 74%)
CMYK	cmyk(68.8%, 60.3%, 0%, 25.9%)
CIE-LAB	lab(37.18, 31.67, -61.87)
CIE-LCH	lch(37.18, 69.51, 297.11°)
OKLab	oklab(47.09% 0.005 -0.1784)
OKLCH	oklch(47.09% 0.178 271.6)
XYZ	xyz(13.5019, 9.6348, 49.2824)
Luminance	0.0964 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B4BBD #BDAD3B

analogous

#3B8CBD #3B4BBD #6C3BBD

triadic

#3B4BBD #BD3B4B #4BBD3B

tetradic

#3B4BBD #BD3B8C #BDAD3B #3BBD6C

square

#3B4BBD #BD3B8C #BDAD3B #3BBD6C

split-complementary

#3B4BBD #BD6C3B #8CBD3B

monochromatic

#1E2660 #2C388E #3B4BBD #6673CF #959EDE

Accessibility & contrast

On white

7.17

#3B4BBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#3B4BBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B4BBD

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4BBD	#FFFFFF	#000000	##FFFFFF
##3B4BBD	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EC1

Deuteranopia (green-blind)

#0052BB

Tritanopia (blue-blind)

#00687D

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3b4bbd;
/* rgb */ color: rgb(59, 75, 189);
/* oklch */ color: oklch(47.1% 0.178 271.6);

Tailwind

colors: {
  custom: {
    50: '#817dd2',
    500: '#3b4bbd',
    950: '#000000',
  },
}

SCSS

$custom: #3b4bbd;
$custom-light: #817dd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4bbd",
  "rgb": {
    "r": 59,
    "g": 75,
    "b": 189
  },
  "hsl": {
    "h": 232.615,
    "s": 52.419,
    "l": 48.627
  },
  "oklch": {
    "l": 0.47089,
    "c": 0.17848,
    "h": 271.6
  },
  "luminance": 0.09636
}

Semantic roles & 50–950 ramp

primary

#3B4BBD

secondary

#C9C18B

accent

#CA4CDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3B4BBD

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

Preview Lab → · Contrast checker → · Palette generator →