#3857AC#3857AC

#3857AC is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.0% C 0.141 H 266.2°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#3857AC
RGB	rgb(56, 87, 172)
HSL	hsl(224, 51%, 45%)
HSV	hsv(224, 67%, 67%)
CMYK	cmyk(67.4%, 49.4%, 0%, 32.5%)
CIE-LAB	lab(38.96, 17.27, -48.98)
CIE-LCH	lch(38.96, 51.93, 289.42°)
OKLab	oklab(47.99% -0.0094 -0.1404)
OKLCH	oklch(47.99% 0.141 266.2)
XYZ	xyz(12.4829, 10.6345, 40.4165)
Luminance	0.1064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3857AC #AC8D38

analogous

#3891AC #3857AC #5338AC

triadic

#3857AC #AC3857 #57AC38

tetradic

#3857AC #AC3891 #AC8D38 #38AC53

square

#3857AC #AC3891 #AC8D38 #38AC53

split-complementary

#3857AC #AC5338 #91AC38

monochromatic

#1A2850 #29407E #3857AC #5876C9 #879CD8

Accessibility & contrast

On white

6.72

#3857AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3857AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3857AC

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3857AC	#FFFFFF	#000000	##FFFFFF
##3857AC	1.00	6.72	3.13	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2961AF

Deuteranopia (green-blind)

#0857AA

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3857ac;
/* rgb */ color: rgb(56, 87, 172);
/* oklch */ color: oklch(48.0% 0.141 266.2);

Tailwind

colors: {
  custom: {
    50: '#7c85c5',
    500: '#3857ac',
    950: '#000000',
  },
}

SCSS

$custom: #3857ac;
$custom-light: #7c85c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3857ac",
  "rgb": {
    "r": 56,
    "g": 87,
    "b": 172
  },
  "hsl": {
    "h": 223.966,
    "s": 50.877,
    "l": 44.706
  },
  "oklch": {
    "l": 0.47992,
    "c": 0.14072,
    "h": 266.2
  },
  "luminance": 0.10636
}

Semantic roles & 50–950 ramp

primary

#3857AC

secondary

#C2B07E

accent

#B54DDA

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3857AC

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

Preview Lab → · Contrast checker → · Palette generator →