#3857BA#3857BA

#3857BA is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.0% C 0.160 H 267.2°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#3857BA
RGB	rgb(56, 87, 186)
HSL	hsl(226, 54%, 47%)
HSV	hsv(226, 70%, 73%)
CMYK	cmyk(69.9%, 53.2%, 0%, 27.1%)
CIE-LAB	lab(39.92, 22.40, -55.67)
CIE-LCH	lch(39.92, 60.01, 291.92°)
OKLab	oklab(49.03% -0.008 -0.1601)
OKLCH	oklch(49.03% 0.16 267.2)
XYZ	xyz(13.8989, 11.2009, 47.8744)
Luminance	0.1120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3857BA #BA9B38

analogous

#3898BA #3857BA #5A38BA

triadic

#3857BA #BA3857 #57BA38

tetradic

#3857BA #BA3898 #BA9B38 #38BA5A

square

#3857BA #BA3898 #BA9B38 #38BA5A

split-complementary

#3857BA #BA5A38 #98BA38

monochromatic

#1C2B5C #2A418B #3857BA #607BCF #8FA2DD

Accessibility & contrast

On white

6.48

#3857BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#3857BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3857BA

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3857BA	#FFFFFF	#000000	##FFFFFF
##3857BA	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1164BD

Deuteranopia (green-blind)

#0058B8

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3857ba;
/* rgb */ color: rgb(56, 87, 186);
/* oklch */ color: oklch(49.0% 0.160 267.2);

Tailwind

colors: {
  custom: {
    50: '#7e85cf',
    500: '#3857ba',
    950: '#000000',
  },
}

SCSS

$custom: #3857ba;
$custom-light: #7e85cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3857ba",
  "rgb": {
    "r": 56,
    "g": 87,
    "b": 186
  },
  "hsl": {
    "h": 225.692,
    "s": 53.719,
    "l": 47.451
  },
  "oklch": {
    "l": 0.49025,
    "c": 0.1603,
    "h": 267.2
  },
  "luminance": 0.11202
}

Semantic roles & 50–950 ramp

primary

#3857BA

secondary

#C8B886

accent

#BA4BDD

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3857BA

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

Preview Lab → · Contrast checker → · Palette generator →