#3F5CD2#3F5CD2

#3F5CD2 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.2% C 0.185 H 268.7°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F5CD2
RGB	rgb(63, 92, 210)
HSL	hsl(228, 62%, 54%)
HSV	hsv(228, 70%, 82%)
CMYK	cmyk(70%, 56.2%, 0%, 17.6%)
CIE-LAB	lab(43.30, 28.86, -64.07)
CIE-LCH	lch(43.30, 70.27, 294.25°)
OKLab	oklab(52.22% -0.0042 -0.1846)
OKLCH	oklch(52.22% 0.185 268.7)
XYZ	xyz(17.5059, 13.3624, 62.6169)
Luminance	0.1336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5CD2 #D2B53F

analogous

#3FA5D2 #3F5CD2 #6B3FD2

triadic

#3F5CD2 #D23F5C #5CD23F

tetradic

#3F5CD2 #D23FA5 #D2B53F #3FD26B

square

#3F5CD2 #D23FA5 #D2B53F #3FD26B

split-complementary

#3F5CD2 #D26B3F #A5D23F

monochromatic

#1D2F7A #2842AC #3F5CD2 #7186DE #A2B0E9

Accessibility & contrast

On white

5.72

#3F5CD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#3F5CD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5CD2

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5CD2	#FFFFFF	#000000	##FFFFFF
##3F5CD2	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD6

Deuteranopia (green-blind)

#0060D0

Tritanopia (blue-blind)

#00798E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3f5cd2;
/* rgb */ color: rgb(63, 92, 210);
/* oklch */ color: oklch(52.2% 0.185 268.7);

Tailwind

colors: {
  custom: {
    50: '#8689e1',
    500: '#3f5cd2',
    950: '#000000',
  },
}

SCSS

$custom: #3f5cd2;
$custom-light: #8689e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5cd2",
  "rgb": {
    "r": 63,
    "g": 92,
    "b": 210
  },
  "hsl": {
    "h": 228.163,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.52215,
    "c": 0.18463,
    "h": 268.7
  },
  "luminance": 0.13364
}

Semantic roles & 50–950 ramp

primary

#3F5CD2

secondary

#D6C997

accent

#C543E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #3F5CD2

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

Preview Lab → · Contrast checker → · Palette generator →