#3159B3#3159B3

#3159B3 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.6% C 0.150 H 263.7°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#3159B3
RGB	rgb(49, 89, 179)
HSL	hsl(222, 57%, 45%)
HSV	hsv(222, 73%, 70%)
CMYK	cmyk(72.6%, 50.3%, 0%, 29.8%)
CIE-LAB	lab(39.67, 17.49, -51.99)
CIE-LCH	lch(39.67, 54.85, 288.60°)
OKLab	oklab(48.59% -0.0164 -0.1493)
OKLCH	oklch(48.59% 0.15 263.7)
XYZ	xyz(12.9728, 11.0510, 44.0885)
Luminance	0.1105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3159B3 #B38B31

analogous

#319AB3 #3159B3 #4A31B3

triadic

#3159B3 #B33159 #59B331

tetradic

#3159B3 #B3319A #B38B31 #31B34A

square

#3159B3 #B3319A #B38B31 #31B34A

split-complementary

#3159B3 #B34A31 #9AB331

monochromatic

#172953 #244183 #3159B3 #5278D0 #829EDD

Accessibility & contrast

On white

6.54

#3159B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#3159B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3159B3

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3159B3	#FFFFFF	#000000	##FFFFFF
##3159B3	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2464B6

Deuteranopia (green-blind)

#0058B1

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3159b3;
/* rgb */ color: rgb(49, 89, 179);
/* oklch */ color: oklch(48.6% 0.150 263.7);

Tailwind

colors: {
  custom: {
    50: '#7a87ca',
    500: '#3159b3',
    950: '#000000',
  },
}

SCSS

$custom: #3159b3;
$custom-light: #7a87ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3159b3",
  "rgb": {
    "r": 49,
    "g": 89,
    "b": 179
  },
  "hsl": {
    "h": 221.538,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.48594,
    "c": 0.15025,
    "h": 263.7
  },
  "luminance": 0.11052
}

Semantic roles & 50–950 ramp

primary

#3159B3

secondary

#C6AE7A

accent

#B148E0

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3159B3

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

Preview Lab → · Contrast checker → · Palette generator →