#3B5BD2#3B5BD2

#3B5BD2 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.8% C 0.187 H 267.8°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#3B5BD2
RGB	rgb(59, 91, 210)
HSL	hsl(227, 63%, 53%)
HSV	hsv(227, 72%, 82%)
CMYK	cmyk(71.9%, 56.7%, 0%, 17.6%)
CIE-LAB	lab(42.86, 28.97, -64.80)
CIE-LCH	lch(42.86, 70.98, 294.09°)
OKLab	oklab(51.83% -0.0071 -0.1868)
OKLCH	oklch(51.83% 0.187 267.8)
XYZ	xyz(17.1735, 13.0633, 62.5767)
Luminance	0.1306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B5BD2 #D2B23B

analogous

#3BA6D2 #3B5BD2 #673BD2

triadic

#3B5BD2 #D23B5B #5BD23B

tetradic

#3B5BD2 #D23BA6 #D2B23B #3BD267

square

#3B5BD2 #D23BA6 #D2B23B #3BD267

split-complementary

#3B5BD2 #D2673B #A6D23B

monochromatic

#1B2F77 #2742A9 #3B5BD2 #6D85DD #9FAEE9

Accessibility & contrast

On white

5.81

#3B5BD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#3B5BD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B5BD2

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B5BD2	#FFFFFF	#000000	##FFFFFF
##3B5BD2	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD6

Deuteranopia (green-blind)

#005ED0

Tritanopia (blue-blind)

#00788D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3b5bd2;
/* rgb */ color: rgb(59, 91, 210);
/* oklch */ color: oklch(51.8% 0.187 267.8);

Tailwind

colors: {
  custom: {
    50: '#8489e1',
    500: '#3b5bd2',
    950: '#000000',
  },
}

SCSS

$custom: #3b5bd2;
$custom-light: #8489e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3b5bd2",
  "rgb": {
    "r": 59,
    "g": 91,
    "b": 210
  },
  "hsl": {
    "h": 227.285,
    "s": 62.656,
    "l": 52.745
  },
  "oklch": {
    "l": 0.51829,
    "c": 0.18696,
    "h": 267.8
  },
  "luminance": 0.13065
}

Semantic roles & 50–950 ramp

primary

#3B5BD2

secondary

#D5C794

accent

#C342E6

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3B5BD2

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

Preview Lab → · Contrast checker → · Palette generator →