#3857AA#3857AA

#3857AA is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.8% C 0.138 H 266.0°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3857AA
RGB	rgb(56, 87, 170)
HSL	hsl(224, 50%, 44%)
HSV	hsv(224, 67%, 67%)
CMYK	cmyk(67.1%, 48.8%, 0%, 33.3%)
CIE-LAB	lab(38.83, 16.53, -48.01)
CIE-LCH	lch(38.83, 50.77, 289.00°)
OKLab	oklab(47.85% -0.0097 -0.1375)
OKLCH	oklch(47.85% 0.138 266)
XYZ	xyz(12.2923, 10.5583, 39.4126)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3857AA #AA8B38

analogous

#3890AA #3857AA #5238AA

triadic

#3857AA #AA3857 #57AA38

tetradic

#3857AA #AA3890 #AA8B38 #38AA52

square

#3857AA #AA3890 #AA8B38 #38AA52

split-complementary

#3857AA #AA5238 #90AA38

monochromatic

#1A284E #293F7C #3857AA #5776C8 #859CD7

Accessibility & contrast

On white

6.75

#3857AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3857AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3857AA

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3857AA	#FFFFFF	#000000	##FFFFFF
##3857AA	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B61AD

Deuteranopia (green-blind)

#0F57A8

Tritanopia (blue-blind)

#006A78

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3857aa;
/* rgb */ color: rgb(56, 87, 170);
/* oklch */ color: oklch(47.8% 0.138 266.0);

Tailwind

colors: {
  custom: {
    50: '#7b85c4',
    500: '#3857aa',
    950: '#000000',
  },
}

SCSS

$custom: #3857aa;
$custom-light: #7b85c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3857aa",
  "rgb": {
    "r": 56,
    "g": 87,
    "b": 170
  },
  "hsl": {
    "h": 223.684,
    "s": 50.442,
    "l": 44.314
  },
  "oklch": {
    "l": 0.47849,
    "c": 0.13788,
    "h": 266
  },
  "luminance": 0.10559
}

Semantic roles & 50–950 ramp

primary

#3857AA

secondary

#C1AE7D

accent

#B44EDA

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3857AA

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

Preview Lab → · Contrast checker → · Palette generator →