#3A5FCB#3A5FCB

#3A5FCB is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.0% C 0.173 H 266.2°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#3A5FCB
RGB	rgb(58, 95, 203)
HSL	hsl(225, 58%, 51%)
HSV	hsv(225, 71%, 80%)
CMYK	cmyk(71.4%, 53.2%, 0%, 20.4%)
CIE-LAB	lab(43.35, 23.73, -59.98)
CIE-LCH	lch(43.35, 64.51, 291.59°)
OKLab	oklab(52.03% -0.0115 -0.1726)
OKLCH	oklch(52.03% 0.173 266.2)
XYZ	xyz(16.6129, 13.3940, 58.1981)
Luminance	0.1340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A5FCB #CBA63A

analogous

#3AA7CB #3A5FCB #5D3ACB

triadic

#3A5FCB #CB3A5F #5FCB3A

tetradic

#3A5FCB #CB3AA7 #CBA63A #3ACB5D

square

#3A5FCB #CB3AA7 #CBA63A #3ACB5D

split-complementary

#3A5FCB #CB5D3A #A7CB3A

monochromatic

#1D326E #2A479E #3A5FCB #6A86D8 #9BAEE5

Accessibility & contrast

On white

5.71

#3A5FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#3A5FCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A5FCB

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A5FCB	#FFFFFF	#000000	##FFFFFF
##3A5FCB	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E6DCF

Deuteranopia (green-blind)

#0060C9

Tritanopia (blue-blind)

#00798C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3a5fcb;
/* rgb */ color: rgb(58, 95, 203);
/* oklch */ color: oklch(52.0% 0.173 266.2);

Tailwind

colors: {
  custom: {
    50: '#828bdc',
    500: '#3a5fcb',
    950: '#000000',
  },
}

SCSS

$custom: #3a5fcb;
$custom-light: #828bdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a5fcb",
  "rgb": {
    "r": 58,
    "g": 95,
    "b": 203
  },
  "hsl": {
    "h": 224.69,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.52027,
    "c": 0.17299,
    "h": 266.2
  },
  "luminance": 0.13396
}

Semantic roles & 50–950 ramp

primary

#3A5FCB

secondary

#D0C090

accent

#BA46E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3A5FCB

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

Preview Lab → · Contrast checker → · Palette generator →