#3B4DB9#3B4DB9

#3B4DB9 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.1% C 0.171 H 271.1°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#3B4DB9
RGB	rgb(59, 77, 185)
HSL	hsl(231, 52%, 48%)
HSV	hsv(231, 68%, 73%)
CMYK	cmyk(68.1%, 58.4%, 0%, 27.5%)
CIE-LAB	lab(37.37, 28.96, -59.21)
CIE-LCH	lch(37.37, 65.91, 296.06°)
OKLab	oklab(47.13% 0.0033 -0.1706)
OKLCH	oklch(47.13% 0.171 271.1)
XYZ	xyz(13.2115, 9.7391, 47.0731)
Luminance	0.0974 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B4DB9 #B9A73B

analogous

#3B8CB9 #3B4DB9 #683BB9

triadic

#3B4DB9 #B93B4D #4DB93B

tetradic

#3B4DB9 #B93B8C #B9A73B #3BB968

square

#3B4DB9 #B93B8C #B9A73B #3BB968

split-complementary

#3B4DB9 #B9683B #8CB93B

monochromatic

#1D265C #2C3A8B #3B4DB9 #6473CD #929DDC

Accessibility & contrast

On white

7.12

#3B4DB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#3B4DB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B4DB9

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4DB9	#FFFFFF	#000000	##FFFFFF
##3B4DB9	1.00	7.12	2.95	7.12
#FFFFFF	7.12	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBD

Deuteranopia (green-blind)

#0052B7

Tritanopia (blue-blind)

#00687B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3b4db9;
/* rgb */ color: rgb(59, 77, 185);
/* oklch */ color: oklch(47.1% 0.171 271.1);

Tailwind

colors: {
  custom: {
    50: '#807ecf',
    500: '#3b4db9',
    950: '#000000',
  },
}

SCSS

$custom: #3b4db9;
$custom-light: #807ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4db9",
  "rgb": {
    "r": 59,
    "g": 77,
    "b": 185
  },
  "hsl": {
    "h": 231.429,
    "s": 51.639,
    "l": 47.843
  },
  "oklch": {
    "l": 0.47133,
    "c": 0.1706,
    "h": 271.1
  },
  "luminance": 0.0974
}

Semantic roles & 50–950 ramp

primary

#3B4DB9

secondary

#C7BE88

accent

#C74DDB

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3B4DB9

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

Preview Lab → · Contrast checker → · Palette generator →