#3F5BAD#3F5BAD

#3F5BAD is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.3% C 0.135 H 267.2°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#3F5BAD
RGB	rgb(63, 91, 173)
HSL	hsl(225, 47%, 46%)
HSV	hsv(225, 64%, 68%)
CMYK	cmyk(63.6%, 47.4%, 0%, 32.2%)
CIE-LAB	lab(40.50, 16.25, -47.07)
CIE-LCH	lch(40.50, 49.80, 289.05°)
OKLab	oklab(49.29% -0.0066 -0.1346)
OKLCH	oklch(49.29% 0.135 267.2)
XYZ	xyz(13.3312, 11.5549, 41.0548)
Luminance	0.1156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5BAD #AD913F

analogous

#3F92AD #3F5BAD #5A3FAD

triadic

#3F5BAD #AD3F5B #5BAD3F

tetradic

#3F5BAD #AD3F92 #AD913F #3FAD5A

square

#3F5BAD #AD3F92 #AD913F #3FAD5A

split-complementary

#3F5BAD #AD5A3F #92AD3F

monochromatic

#1E2C53 #2F4380 #3F5BAD #637CC6 #90A2D7

Accessibility & contrast

On white

6.34

#3F5BAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#3F5BAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5BAD

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5BAD	#FFFFFF	#000000	##FFFFFF
##3F5BAD	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3265B0

Deuteranopia (green-blind)

#1E5BAB

Tritanopia (blue-blind)

#006E7B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3f5bad;
/* rgb */ color: rgb(63, 91, 173);
/* oklch */ color: oklch(49.3% 0.135 267.2);

Tailwind

colors: {
  custom: {
    50: '#7f89c6',
    500: '#3f5bad',
    950: '#000000',
  },
}

SCSS

$custom: #3f5bad;
$custom-light: #7f89c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5bad",
  "rgb": {
    "r": 63,
    "g": 91,
    "b": 173
  },
  "hsl": {
    "h": 224.727,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.49286,
    "c": 0.13476,
    "h": 267.2
  },
  "luminance": 0.11556
}

Semantic roles & 50–950 ramp

primary

#3F5BAD

secondary

#C2B286

accent

#B452D6

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F5BAD

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

Preview Lab → · Contrast checker → · Palette generator →