#3F5DD2#3F5DD2

#3F5DD2 is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.4% C 0.183 H 268.4°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DD2
RGB	rgb(63, 93, 210)
HSL	hsl(228, 62%, 54%)
HSV	hsv(228, 70%, 82%)
CMYK	cmyk(70%, 55.7%, 0%, 17.6%)
CIE-LAB	lab(43.56, 28.22, -63.65)
CIE-LCH	lch(43.56, 69.63, 293.91°)
OKLab	oklab(52.41% -0.005 -0.1833)
OKLCH	oklch(52.41% 0.183 268.4)
XYZ	xyz(17.5931, 13.5368, 62.6460)
Luminance	0.1354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DD2 #D2B43F

analogous

#3FA6D2 #3F5DD2 #6A3FD2

triadic

#3F5DD2 #D23F5D #5DD23F

tetradic

#3F5DD2 #D23FA6 #D2B43F #3FD26A

square

#3F5DD2 #D23FA6 #D2B43F #3FD26A

split-complementary

#3F5DD2 #D26A3F #A6D23F

monochromatic

#1D307A #2843AC #3F5DD2 #7187DE #A2B1E9

Accessibility & contrast

On white

5.66

#3F5DD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#3F5DD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DD2

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DD2	#FFFFFF	#000000	##FFFFFF
##3F5DD2	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED6

Deuteranopia (green-blind)

#0060D0

Tritanopia (blue-blind)

#007A8E

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3f5dd2;
/* rgb */ color: rgb(63, 93, 210);
/* oklch */ color: oklch(52.4% 0.183 268.4);

Tailwind

colors: {
  custom: {
    50: '#868ae1',
    500: '#3f5dd2',
    950: '#000000',
  },
}

SCSS

$custom: #3f5dd2;
$custom-light: #868ae1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5dd2",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 210
  },
  "hsl": {
    "h": 227.755,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.52408,
    "c": 0.18341,
    "h": 268.4
  },
  "luminance": 0.13539
}

Semantic roles & 50–950 ramp

primary

#3F5DD2

secondary

#D6C997

accent

#C443E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #3F5DD2

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

Preview Lab → · Contrast checker → · Palette generator →