#3B4BBB#3B4BBB

#3B4BBB is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.9% C 0.176 H 271.6°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#3B4BBB
RGB	rgb(59, 75, 187)
HSL	hsl(233, 52%, 48%)
HSV	hsv(233, 68%, 73%)
CMYK	cmyk(68.4%, 59.9%, 0%, 26.7%)
CIE-LAB	lab(37.02, 30.96, -60.96)
CIE-LCH	lch(37.02, 68.37, 296.93°)
OKLab	oklab(46.92% 0.005 -0.1757)
OKLCH	oklch(46.92% 0.176 271.6)
XYZ	xyz(13.2863, 9.5486, 48.1469)
Luminance	0.0955 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B4BBB #BBAB3B

analogous

#3B8BBB #3B4BBB #6B3BBB

triadic

#3B4BBB #BB3B4B #4BBB3B

tetradic

#3B4BBB #BB3B8B #BBAB3B #3BBB6B

square

#3B4BBB #BB3B8B #BBAB3B #3BBB6B

split-complementary

#3B4BBB #BB6B3B #8BBB3B

monochromatic

#1E265E #2C388C #3B4BBB #6572CE #939DDD

Accessibility & contrast

On white

7.22

#3B4BBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#3B4BBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B4BBB

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4BBB	#FFFFFF	#000000	##FFFFFF
##3B4BBB	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBF

Deuteranopia (green-blind)

#0051B9

Tritanopia (blue-blind)

#00677C

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3b4bbb;
/* rgb */ color: rgb(59, 75, 187);
/* oklch */ color: oklch(46.9% 0.176 271.6);

Tailwind

colors: {
  custom: {
    50: '#817dd0',
    500: '#3b4bbb',
    950: '#000000',
  },
}

SCSS

$custom: #3b4bbb;
$custom-light: #817dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4bbb",
  "rgb": {
    "r": 59,
    "g": 75,
    "b": 187
  },
  "hsl": {
    "h": 232.5,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.46922,
    "c": 0.17579,
    "h": 271.6
  },
  "luminance": 0.0955
}

Semantic roles & 50–950 ramp

primary

#3B4BBB

secondary

#C8C08A

accent

#CA4CDB

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #3B4BBB

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

Preview Lab → · Contrast checker → · Palette generator →