#3F5AD3#3F5AD3

#3F5AD3 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.9% C 0.188 H 269.2°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#3F5AD3
RGB	rgb(63, 90, 211)
HSL	hsl(229, 63%, 54%)
HSV	hsv(229, 70%, 83%)
CMYK	cmyk(70.1%, 57.3%, 0%, 17.3%)
CIE-LAB	lab(42.87, 30.48, -65.35)
CIE-LCH	lch(42.87, 72.11, 295.01°)
OKLab	oklab(51.91% -0.0026 -0.1884)
OKLCH	oklch(51.91% 0.188 269.2)
XYZ	xyz(17.4599, 13.0705, 63.2181)
Luminance	0.1307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5AD3 #D3B83F

analogous

#3FA4D3 #3F5AD3 #6E3FD3

triadic

#3F5AD3 #D33F5A #5AD33F

tetradic

#3F5AD3 #D33FA4 #D3B83F #3FD36E

square

#3F5AD3 #D33FA4 #D3B83F #3FD36E

split-complementary

#3F5AD3 #D36E3F #A4D33F

monochromatic

#1C2E7B #2840AD #3F5AD3 #7185DE #A3B0EA

Accessibility & contrast

On white

5.81

#3F5AD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#3F5AD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5AD3

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5AD3	#FFFFFF	#000000	##FFFFFF
##3F5AD3	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)

#006CD7

Deuteranopia (green-blind)

#005FD1

Tritanopia (blue-blind)

#00788E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f5ad3;
/* rgb */ color: rgb(63, 90, 211);
/* oklch */ color: oklch(51.9% 0.188 269.2);

Tailwind

colors: {
  custom: {
    50: '#8688e1',
    500: '#3f5ad3',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ad3;
$custom-light: #8688e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ad3",
  "rgb": {
    "r": 63,
    "g": 90,
    "b": 211
  },
  "hsl": {
    "h": 229.054,
    "s": 62.712,
    "l": 53.725
  },
  "oklch": {
    "l": 0.51913,
    "c": 0.18839,
    "h": 269.2
  },
  "luminance": 0.13072
}

Semantic roles & 50–950 ramp

primary

#3F5AD3

secondary

#D7CB97

accent

#C842E6

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #3F5AD3

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

Preview Lab → · Contrast checker → · Palette generator →