#3B5BBC#3B5BBC

#3B5BBC is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.1% C 0.157 H 266.9°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#3B5BBC
RGB	rgb(59, 91, 188)
HSL	hsl(225, 52%, 48%)
HSV	hsv(225, 69%, 74%)
CMYK	cmyk(68.6%, 51.6%, 0%, 26.3%)
CIE-LAB	lab(41.28, 20.99, -54.63)
CIE-LCH	lch(41.28, 58.52, 291.02°)
OKLab	oklab(50.14% -0.0085 -0.1569)
OKLCH	oklch(50.14% 0.157 266.9)
XYZ	xyz(14.6187, 12.0414, 49.1210)
Luminance	0.1204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B5BBC #BC9C3B

analogous

#3B9BBC #3B5BBC #5B3BBC

triadic

#3B5BBC #BC3B5B #5BBC3B

tetradic

#3B5BBC #BC3B9B #BC9C3B #3BBC5B

square

#3B5BBC #BC3B9B #BC9C3B #3BBC5B

split-complementary

#3B5BBC #BC5B3B #9BBC3B

monochromatic

#1E2E5F #2C448D #3B5BBC #6580CF #94A6DD

Accessibility & contrast

On white

6.16

#3B5BBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#3B5BBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B5BBC

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B5BBC	#FFFFFF	#000000	##FFFFFF
##3B5BBC	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F68BF

Deuteranopia (green-blind)

#005CBA

Tritanopia (blue-blind)

#007283

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3b5bbc;
/* rgb */ color: rgb(59, 91, 188);
/* oklch */ color: oklch(50.1% 0.157 266.9);

Tailwind

colors: {
  custom: {
    50: '#8088d1',
    500: '#3b5bbc',
    950: '#000000',
  },
}

SCSS

$custom: #3b5bbc;
$custom-light: #8088d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3b5bbc",
  "rgb": {
    "r": 59,
    "g": 91,
    "b": 188
  },
  "hsl": {
    "h": 225.116,
    "s": 52.227,
    "l": 48.431
  },
  "oklch": {
    "l": 0.50142,
    "c": 0.15713,
    "h": 266.9
  },
  "luminance": 0.12043
}

Semantic roles & 50–950 ramp

primary

#3B5BBC

secondary

#C9B98A

accent

#B84CDC

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3B5BBC

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

Preview Lab → · Contrast checker → · Palette generator →