#3B57BE#3B57BE

#3B57BE is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.5% C 0.165 H 268.3°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#3B57BE
RGB	rgb(59, 87, 190)
HSL	hsl(227, 53%, 49%)
HSV	hsv(227, 69%, 75%)
CMYK	cmyk(68.9%, 54.2%, 0%, 25.5%)
CIE-LAB	lab(40.35, 24.30, -57.30)
CIE-LCH	lch(40.35, 62.24, 292.98°)
OKLab	oklab(49.48% -0.0049 -0.1648)
OKLCH	oklch(49.48% 0.165 268.3)
XYZ	xyz(14.5029, 11.4625, 50.1534)
Luminance	0.1146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B57BE #BEA23B

analogous

#3B99BE #3B57BE #613BBE

triadic

#3B57BE #BE3B57 #57BE3B

tetradic

#3B57BE #BE3B99 #BEA23B #3BBE61

square

#3B57BE #BE3B99 #BEA23B #3BBE61

split-complementary

#3B57BE #BE613B #99BE3B

monochromatic

#1E2C61 #2C428F #3B57BE #677DD0 #95A5DE

Accessibility & contrast

On white

6.38

#3B57BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#3B57BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B57BE

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B57BE	#FFFFFF	#000000	##FFFFFF
##3B57BE	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)

#0565C2

Deuteranopia (green-blind)

#0059BC

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3b57be;
/* rgb */ color: rgb(59, 87, 190);
/* oklch */ color: oklch(49.5% 0.165 268.3);

Tailwind

colors: {
  custom: {
    50: '#8186d2',
    500: '#3b57be',
    950: '#000000',
  },
}

SCSS

$custom: #3b57be;
$custom-light: #8186d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3b57be",
  "rgb": {
    "r": 59,
    "g": 87,
    "b": 190
  },
  "hsl": {
    "h": 227.176,
    "s": 52.61,
    "l": 48.824
  },
  "oklch": {
    "l": 0.49481,
    "c": 0.16491,
    "h": 268.3
  },
  "luminance": 0.11464
}

Semantic roles & 50–950 ramp

primary

#3B57BE

secondary

#CABC8B

accent

#BD4CDC

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3B57BE

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

Preview Lab → · Contrast checker → · Palette generator →