#3A5FBF#3A5FBF

#3A5FBF is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.1% C 0.157 H 265.4°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#3A5FBF
RGB	rgb(58, 95, 191)
HSL	hsl(223, 53%, 49%)
HSV	hsv(223, 70%, 75%)
CMYK	cmyk(69.6%, 50.3%, 0%, 25.1%)
CIE-LAB	lab(42.53, 19.35, -54.37)
CIE-LCH	lch(42.53, 57.71, 289.59°)
OKLab	oklab(51.14% -0.0127 -0.1561)
OKLCH	oklch(51.14% 0.157 265.4)
XYZ	xyz(15.2378, 12.8440, 50.9562)
Luminance	0.1285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A5FBF #BF9A3A

analogous

#3AA2BF #3A5FBF #583ABF

triadic

#3A5FBF #BF3A5F #5FBF3A

tetradic

#3A5FBF #BF3AA2 #BF9A3A #3ABF58

square

#3A5FBF #BF3AA2 #BF9A3A #3ABF58

split-complementary

#3A5FBF #BF583A #A2BF3A

monochromatic

#1D3061 #2C4890 #3A5FBF #6683D0 #95A9DF

Accessibility & contrast

On white

5.88

#3A5FBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#3A5FBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A5FBF

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A5FBF	#FFFFFF	#000000	##FFFFFF
##3A5FBF	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#276BC2

Deuteranopia (green-blind)

#005FBD

Tritanopia (blue-blind)

#007686

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3a5fbf;
/* rgb */ color: rgb(58, 95, 191);
/* oklch */ color: oklch(51.1% 0.157 265.4);

Tailwind

colors: {
  custom: {
    50: '#808bd3',
    500: '#3a5fbf',
    950: '#000000',
  },
}

SCSS

$custom: #3a5fbf;
$custom-light: #808bd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3a5fbf",
  "rgb": {
    "r": 58,
    "g": 95,
    "b": 191
  },
  "hsl": {
    "h": 223.308,
    "s": 53.414,
    "l": 48.824
  },
  "oklch": {
    "l": 0.5114,
    "c": 0.1566,
    "h": 265.4
  },
  "luminance": 0.12846
}

Semantic roles & 50–950 ramp

primary

#3A5FBF

secondary

#CAB88B

accent

#B44BDD

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3A5FBF

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

Preview Lab → · Contrast checker → · Palette generator →