#3B57BA#3B57BA

#3B57BA is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.2% C 0.159 H 268.1°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#3B57BA
RGB	rgb(59, 87, 186)
HSL	hsl(227, 52%, 48%)
HSV	hsv(227, 68%, 73%)
CMYK	cmyk(68.3%, 53.2%, 0%, 27.1%)
CIE-LAB	lab(40.06, 22.85, -55.43)
CIE-LCH	lch(40.06, 59.95, 292.40°)
OKLab	oklab(49.18% -0.0052 -0.1593)
OKLCH	oklch(49.18% 0.159 268.1)
XYZ	xyz(14.0717, 11.2900, 47.8825)
Luminance	0.1129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B57BA #BA9E3B

analogous

#3B96BA #3B57BA #5F3BBA

triadic

#3B57BA #BA3B57 #57BA3B

tetradic

#3B57BA #BA3B96 #BA9E3B #3BBA5F

square

#3B57BA #BA3B96 #BA9E3B #3BBA5F

split-complementary

#3B57BA #BA5F3B #96BA3B

monochromatic

#1E2C5D #2C418C #3B57BA #647CCE #93A3DD

Accessibility & contrast

On white

6.45

#3B57BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#3B57BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B57BA

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B57BA	#FFFFFF	#000000	##FFFFFF
##3B57BA	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1364BD

Deuteranopia (green-blind)

#0059B8

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3b57ba;
/* rgb */ color: rgb(59, 87, 186);
/* oklch */ color: oklch(49.2% 0.159 268.1);

Tailwind

colors: {
  custom: {
    50: '#8086cf',
    500: '#3b57ba',
    950: '#000000',
  },
}

SCSS

$custom: #3b57ba;
$custom-light: #8086cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3b57ba",
  "rgb": {
    "r": 59,
    "g": 87,
    "b": 186
  },
  "hsl": {
    "h": 226.772,
    "s": 51.837,
    "l": 48.039
  },
  "oklch": {
    "l": 0.49177,
    "c": 0.15939,
    "h": 268.1
  },
  "luminance": 0.11291
}

Semantic roles & 50–950 ramp

primary

#3B57BA

secondary

#C8BA89

accent

#BC4DDB

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3B57BA

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

Preview Lab → · Contrast checker → · Palette generator →