#3B4CB1#3B4CB1

#3B4CB1 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.3% C 0.161 H 271.4°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#3B4CB1
RGB	rgb(59, 76, 177)
HSL	hsl(231, 50%, 46%)
HSV	hsv(231, 67%, 69%)
CMYK	cmyk(66.7%, 57.1%, 0%, 30.6%)
CIE-LAB	lab(36.50, 26.75, -55.90)
CIE-LCH	lch(36.50, 61.97, 295.57°)
OKLab	oklab(46.29% 0.004 -0.1608)
OKLCH	oklch(46.29% 0.161 271.4)
XYZ	xyz(12.3212, 9.2719, 42.7268)
Luminance	0.0927 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B4CB1 #B1A03B

analogous

#3B87B1 #3B4CB1 #653BB1

triadic

#3B4CB1 #B13B4C #4CB13B

tetradic

#3B4CB1 #B13B87 #B1A03B #3BB165

square

#3B4CB1 #B13B87 #B1A03B #3BB165

split-complementary

#3B4CB1 #B1653B #87B13B

monochromatic

#1C2555 #2C3883 #3B4CB1 #5F6FCA #8D98D9

Accessibility & contrast

On white

7.36

#3B4CB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#3B4CB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B4CB1

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4CB1	#FFFFFF	#000000	##FFFFFF
##3B4CB1	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB4

Deuteranopia (green-blind)

#0051AF

Tritanopia (blue-blind)

#006477

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3b4cb1;
/* rgb */ color: rgb(59, 76, 177);
/* oklch */ color: oklch(46.3% 0.161 271.4);

Tailwind

colors: {
  custom: {
    50: '#7f7dc9',
    500: '#3b4cb1',
    950: '#000000',
  },
}

SCSS

$custom: #3b4cb1;
$custom-light: #7f7dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4cb1",
  "rgb": {
    "r": 59,
    "g": 76,
    "b": 177
  },
  "hsl": {
    "h": 231.356,
    "s": 50,
    "l": 46.275
  },
  "oklch": {
    "l": 0.46294,
    "c": 0.1609,
    "h": 271.4
  },
  "luminance": 0.09273
}

Semantic roles & 50–950 ramp

primary

#3B4CB1

secondary

#C4BB84

accent

#C54EDA

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3B4CB1

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

Preview Lab → · Contrast checker → · Palette generator →