#3857BD#3857BD

#3857BD is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.3% C 0.164 H 267.3°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#3857BD
RGB	rgb(56, 87, 189)
HSL	hsl(226, 54%, 48%)
HSV	hsv(226, 70%, 74%)
CMYK	cmyk(70.4%, 54%, 0%, 25.9%)
CIE-LAB	lab(40.13, 23.50, -57.08)
CIE-LCH	lch(40.13, 61.73, 292.38°)
OKLab	oklab(49.25% -0.0077 -0.1642)
OKLCH	oklch(49.25% 0.164 267.3)
XYZ	xyz(14.2212, 11.3298, 49.5716)
Luminance	0.1133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3857BD #BD9E38

analogous

#3899BD #3857BD #5B38BD

triadic

#3857BD #BD3857 #57BD38

tetradic

#3857BD #BD3899 #BD9E38 #38BD5B

square

#3857BD #BD3899 #BD9E38 #38BD5B

split-complementary

#3857BD #BD5B38 #99BD38

monochromatic

#1C2C5F #2A418E #3857BD #627CD0 #91A3DE

Accessibility & contrast

On white

6.43

#3857BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#3857BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3857BD

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3857BD	#FFFFFF	#000000	##FFFFFF
##3857BD	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0765C1

Deuteranopia (green-blind)

#0059BB

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3857bd;
/* rgb */ color: rgb(56, 87, 189);
/* oklch */ color: oklch(49.3% 0.164 267.3);

Tailwind

colors: {
  custom: {
    50: '#7f85d2',
    500: '#3857bd',
    950: '#000000',
  },
}

SCSS

$custom: #3857bd;
$custom-light: #7f85d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3857bd",
  "rgb": {
    "r": 56,
    "g": 87,
    "b": 189
  },
  "hsl": {
    "h": 226.015,
    "s": 54.286,
    "l": 48.039
  },
  "oklch": {
    "l": 0.49254,
    "c": 0.16442,
    "h": 267.3
  },
  "luminance": 0.11331
}

Semantic roles & 50–950 ramp

primary

#3857BD

secondary

#C9BA87

accent

#BB4ADE

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3857BD

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

Preview Lab → · Contrast checker → · Palette generator →