#3B4FA1#3B4FA1

#3B4FA1 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.7% C 0.134 H 270.0°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#3B4FA1
RGB	rgb(59, 79, 161)
HSL	hsl(228, 46%, 43%)
HSV	hsv(228, 63%, 63%)
CMYK	cmyk(63.4%, 50.9%, 0%, 36.9%)
CIE-LAB	lab(36.16, 19.04, -46.91)
CIE-LCH	lch(36.16, 50.63, 292.09°)
OKLab	oklab(45.68% 0.0001 -0.1344)
OKLCH	oklch(45.68% 0.134 270)
XYZ	xyz(11.0305, 9.0940, 34.8853)
Luminance	0.0910 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B4FA1 #A18D3B

analogous

#3B82A1 #3B4FA1 #5A3BA1

triadic

#3B4FA1 #A13B4F #4FA13B

tetradic

#3B4FA1 #A13B82 #A18D3B #3BA15A

square

#3B4FA1 #A13B82 #A18D3B #3BA15A

split-complementary

#3B4FA1 #A15A3B #82A13B

monochromatic

#1A2347 #2B3974 #3B4FA1 #586CC2 #8494D2

Accessibility & contrast

On white

7.45

#3B4FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#3B4FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B4FA1

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4FA1	#FFFFFF	#000000	##FFFFFF
##3B4FA1	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225AA4

Deuteranopia (green-blind)

#07519F

Tritanopia (blue-blind)

#006270

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3b4fa1;
/* rgb */ color: rgb(59, 79, 161);
/* oklch */ color: oklch(45.7% 0.134 270.0);

Tailwind

colors: {
  custom: {
    50: '#7b80bd',
    500: '#3b4fa1',
    950: '#000000',
  },
}

SCSS

$custom: #3b4fa1;
$custom-light: #7b80bd;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4fa1",
  "rgb": {
    "r": 59,
    "g": 79,
    "b": 161
  },
  "hsl": {
    "h": 228.235,
    "s": 46.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.45677,
    "c": 0.13438,
    "h": 270
  },
  "luminance": 0.09095
}

Semantic roles & 50–950 ramp

primary

#3B4FA1

secondary

#BCAF7C

accent

#BC52D6

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3B4FA1

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

Preview Lab → · Contrast checker → · Palette generator →