#3B45BB#3B45BB

#3B45BB is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.8% C 0.183 H 273.0°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#3B45BB
RGB	rgb(59, 69, 187)
HSL	hsl(235, 52%, 48%)
HSV	hsv(235, 68%, 73%)
CMYK	cmyk(68.4%, 63.1%, 0%, 26.7%)
CIE-LAB	lab(35.54, 34.77, -63.37)
CIE-LCH	lch(35.54, 72.28, 298.76°)
OKLab	oklab(45.83% 0.0096 -0.1829)
OKLCH	oklch(45.83% 0.183 273)
XYZ	xyz(12.8984, 8.7727, 48.0176)
Luminance	0.0877 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B45BB #BBB13B

analogous

#3B85BB #3B45BB #713BBB

triadic

#3B45BB #BB3B45 #45BB3B

tetradic

#3B45BB #BB3B85 #BBB13B #3BBB71

square

#3B45BB #BB3B85 #BBB13B #3BBB71

split-complementary

#3B45BB #BB713B #85BB3B

monochromatic

#1E235E #2C348C #3B45BB #656DCE #9399DD

Accessibility & contrast

On white

7.62

#3B45BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3B45BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B45BB

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B45BB	#FFFFFF	#000000	##FFFFFF
##3B45BB	1.00	7.62	2.75	7.62
#FFFFFF	7.62	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABF

Deuteranopia (green-blind)

#004EB9

Tritanopia (blue-blind)

#006379

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3b45bb;
/* rgb */ color: rgb(59, 69, 187);
/* oklch */ color: oklch(45.8% 0.183 273.0);

Tailwind

colors: {
  custom: {
    50: '#8179d0',
    500: '#3b45bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b45bb;
$custom-light: #8179d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b45bb",
  "rgb": {
    "r": 59,
    "g": 69,
    "b": 187
  },
  "hsl": {
    "h": 235.313,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.45832,
    "c": 0.1831,
    "h": 273
  },
  "luminance": 0.08774
}

Semantic roles & 50–950 ramp

primary

#3B45BB

secondary

#C8C38A

accent

#D04CDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #3B45BB

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

Preview Lab → · Contrast checker → · Palette generator →