#3F5ACA#3F5ACA

#3F5ACA is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.2% C 0.176 H 269.0°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F5ACA
RGB	rgb(63, 90, 202)
HSL	hsl(228, 57%, 52%)
HSV	hsv(228, 69%, 79%)
CMYK	cmyk(68.8%, 55.4%, 0%, 20.8%)
CIE-LAB	lab(42.20, 27.27, -61.25)
CIE-LCH	lch(42.20, 67.05, 294.00°)
OKLab	oklab(51.2% -0.0029 -0.1763)
OKLCH	oklch(51.2% 0.176 269)
XYZ	xyz(16.3631, 12.6318, 57.4415)
Luminance	0.1263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5ACA #CAAF3F

analogous

#3FA0CA #3F5ACA #693FCA

triadic

#3F5ACA #CA3F5A #5ACA3F

tetradic

#3F5ACA #CA3FA0 #CAAF3F #3FCA69

square

#3F5ACA #CA3FA0 #CAAF3F #3FCA69

split-complementary

#3F5ACA #CA693F #A0CA3F

monochromatic

#1F2F70 #2C43A0 #3F5ACA #6F83D7 #9FACE4

Accessibility & contrast

On white

5.95

#3F5ACA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#3F5ACA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5ACA

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5ACA	#FFFFFF	#000000	##FFFFFF
##3F5ACA	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACE

Deuteranopia (green-blind)

#005DC8

Tritanopia (blue-blind)

#007589

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5aca;
/* rgb */ color: rgb(63, 90, 202);
/* oklch */ color: oklch(51.2% 0.176 269.0);

Tailwind

colors: {
  custom: {
    50: '#8488db',
    500: '#3f5aca',
    950: '#000000',
  },
}

SCSS

$custom: #3f5aca;
$custom-light: #8488db;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5aca",
  "rgb": {
    "r": 63,
    "g": 90,
    "b": 202
  },
  "hsl": {
    "h": 228.345,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.51204,
    "c": 0.17634,
    "h": 269
  },
  "luminance": 0.12633
}

Semantic roles & 50–950 ramp

primary

#3F5ACA

secondary

#D1C594

accent

#C248E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F5ACA

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

Preview Lab → · Contrast checker → · Palette generator →