#3B4BAB#3B4BAB

#3B4BAB is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.6% C 0.154 H 271.8°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#3B4BAB
RGB	rgb(59, 75, 171)
HSL	hsl(231, 49%, 45%)
HSV	hsv(231, 65%, 67%)
CMYK	cmyk(65.5%, 56.1%, 0%, 32.9%)
CIE-LAB	lab(35.79, 25.25, -53.49)
CIE-LCH	lch(35.79, 59.15, 295.27°)
OKLab	oklab(45.62% 0.0047 -0.1538)
OKLCH	oklch(45.62% 0.154 271.8)
XYZ	xyz(11.6679, 8.9012, 39.6234)
Luminance	0.0890 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B4BAB #AB9B3B

analogous

#3B83AB #3B4BAB #633BAB

triadic

#3B4BAB #AB3B4B #4BAB3B

tetradic

#3B4BAB #AB3B83 #AB9B3B #3BAB63

square

#3B4BAB #AB3B83 #AB9B3B #3BAB63

split-complementary

#3B4BAB #AB633B #83AB3B

monochromatic

#1C2350 #2B377D #3B4BAB #5C6CC7 #8A95D7

Accessibility & contrast

On white

7.55

#3B4BAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3B4BAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B4BAB

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4BAB	#FFFFFF	#000000	##FFFFFF
##3B4BAB	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059AE

Deuteranopia (green-blind)

#004FA9

Tritanopia (blue-blind)

#006273

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3b4bab;
/* rgb */ color: rgb(59, 75, 171);
/* oklch */ color: oklch(45.6% 0.154 271.8);

Tailwind

colors: {
  custom: {
    50: '#7d7dc5',
    500: '#3b4bab',
    950: '#000000',
  },
}

SCSS

$custom: #3b4bab;
$custom-light: #7d7dc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4bab",
  "rgb": {
    "r": 59,
    "g": 75,
    "b": 171
  },
  "hsl": {
    "h": 231.429,
    "s": 48.696,
    "l": 45.098
  },
  "oklch": {
    "l": 0.45622,
    "c": 0.15384,
    "h": 271.8
  },
  "luminance": 0.08902
}

Semantic roles & 50–950 ramp

primary

#3B4BAB

secondary

#C1B881

accent

#C550D8

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3B4BAB

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

Preview Lab → · Contrast checker → · Palette generator →