#3159AB#3159AB

#3159AB is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.0% C 0.139 H 262.7°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#3159AB
RGB	rgb(49, 89, 171)
HSL	hsl(220, 55%, 43%)
HSV	hsv(220, 71%, 67%)
CMYK	cmyk(71.3%, 48%, 0%, 32.9%)
CIE-LAB	lab(39.13, 14.49, -48.12)
CIE-LCH	lch(39.13, 50.26, 286.75°)
OKLab	oklab(48.02% -0.0176 -0.138)
OKLCH	oklch(48.02% 0.139 262.7)
XYZ	xyz(12.1871, 10.7367, 39.9503)
Luminance	0.1074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3159AB #AB8331

analogous

#3196AB #3159AB #4631AB

triadic

#3159AB #AB3159 #59AB31

tetradic

#3159AB #AB3196 #AB8331 #31AB46

square

#3159AB #AB3196 #AB8331 #31AB46

split-complementary

#3159AB #AB4631 #96AB31

monochromatic

#16274C #23407B #3159AB #4D77CC #7D9BDA

Accessibility & contrast

On white

6.67

#3159AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3159AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3159AB

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3159AB	#FFFFFF	#000000	##FFFFFF
##3159AB	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D62AE

Deuteranopia (green-blind)

#0E57A9

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3159ab;
/* rgb */ color: rgb(49, 89, 171);
/* oklch */ color: oklch(48.0% 0.139 262.7);

Tailwind

colors: {
  custom: {
    50: '#7887c4',
    500: '#3159ab',
    950: '#000000',
  },
}

SCSS

$custom: #3159ab;
$custom-light: #7887c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3159ab",
  "rgb": {
    "r": 49,
    "g": 89,
    "b": 171
  },
  "hsl": {
    "h": 220.328,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.48016,
    "c": 0.13909,
    "h": 262.7
  },
  "luminance": 0.10738
}

Semantic roles & 50–950 ramp

primary

#3159AB

secondary

#C2A975

accent

#AE49DF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3159AB

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

Preview Lab → · Contrast checker → · Palette generator →