#3F5AAF#3F5AAF

#3F5AAF is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.2% C 0.139 H 267.8°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#3F5AAF
RGB	rgb(63, 90, 175)
HSL	hsl(226, 47%, 47%)
HSV	hsv(226, 64%, 69%)
CMYK	cmyk(64%, 48.6%, 0%, 31.4%)
CIE-LAB	lab(40.35, 17.61, -48.50)
CIE-LCH	lch(40.35, 51.59, 289.96°)
OKLab	oklab(49.21% -0.0053 -0.1388)
OKLCH	oklch(49.21% 0.139 267.8)
XYZ	xyz(13.4413, 11.4630, 42.0534)
Luminance	0.1146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5AAF #AF943F

analogous

#3F92AF #3F5AAF #5C3FAF

triadic

#3F5AAF #AF3F5A #5AAF3F

tetradic

#3F5AAF #AF3F92 #AF943F #3FAF5C

square

#3F5AAF #AF3F92 #AF943F #3FAF5C

split-complementary

#3F5AAF #AF5C3F #92AF3F

monochromatic

#1F2C55 #2F4382 #3F5AAF #647CC7 #91A2D7

Accessibility & contrast

On white

6.38

#3F5AAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#3F5AAF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5AAF

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5AAF	#FFFFFF	#000000	##FFFFFF
##3F5AAF	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E64B2

Deuteranopia (green-blind)

#175AAD

Tritanopia (blue-blind)

#006E7C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3f5aaf;
/* rgb */ color: rgb(63, 90, 175);
/* oklch */ color: oklch(49.2% 0.139 267.8);

Tailwind

colors: {
  custom: {
    50: '#7f88c7',
    500: '#3f5aaf',
    950: '#000000',
  },
}

SCSS

$custom: #3f5aaf;
$custom-light: #7f88c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5aaf",
  "rgb": {
    "r": 63,
    "g": 90,
    "b": 175
  },
  "hsl": {
    "h": 225.536,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.49213,
    "c": 0.13889,
    "h": 267.8
  },
  "luminance": 0.11464
}

Semantic roles & 50–950 ramp

primary

#3F5AAF

secondary

#C3B487

accent

#B651D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F5AAF

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

Preview Lab → · Contrast checker → · Palette generator →