#3B5CD3#3B5CD3

#3B5CD3 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.1% C 0.187 H 267.6°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#3B5CD3
RGB	rgb(59, 92, 211)
HSL	hsl(227, 63%, 53%)
HSV	hsv(227, 72%, 83%)
CMYK	cmyk(72%, 56.4%, 0%, 17.3%)
CIE-LAB	lab(43.19, 28.69, -64.84)
CIE-LCH	lch(43.19, 70.90, 293.87°)
OKLab	oklab(52.1% -0.0078 -0.1869)
OKLCH	oklch(52.1% 0.187 267.6)
XYZ	xyz(17.3846, 13.2854, 63.2635)
Luminance	0.1329 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B5CD3 #D3B23B

analogous

#3BA8D3 #3B5CD3 #663BD3

triadic

#3B5CD3 #D33B5C #5CD33B

tetradic

#3B5CD3 #D33BA8 #D3B23B #3BD366

square

#3B5CD3 #D33BA8 #D3B23B #3BD366

split-complementary

#3B5CD3 #D3663B #A8D33B

monochromatic

#1B2F79 #2643AB #3B5CD3 #6D86DE #9FAFE9

Accessibility & contrast

On white

5.74

#3B5CD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#3B5CD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B5CD3

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B5CD3	#FFFFFF	#000000	##FFFFFF
##3B5CD3	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD7

Deuteranopia (green-blind)

#005FD1

Tritanopia (blue-blind)

#00798E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3b5cd3;
/* rgb */ color: rgb(59, 92, 211);
/* oklch */ color: oklch(52.1% 0.187 267.6);

Tailwind

colors: {
  custom: {
    50: '#8589e1',
    500: '#3b5cd3',
    950: '#000000',
  },
}

SCSS

$custom: #3b5cd3;
$custom-light: #8589e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3b5cd3",
  "rgb": {
    "r": 59,
    "g": 92,
    "b": 211
  },
  "hsl": {
    "h": 226.974,
    "s": 63.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.52102,
    "c": 0.18707,
    "h": 267.6
  },
  "luminance": 0.13287
}

Semantic roles & 50–950 ramp

primary

#3B5CD3

secondary

#D6C794

accent

#C341E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3B5CD3

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

Preview Lab → · Contrast checker → · Palette generator →