#3159B5#3159B5

#3159B5 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.7% C 0.153 H 263.9°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#3159B5
RGB	rgb(49, 89, 181)
HSL	hsl(222, 57%, 45%)
HSV	hsv(222, 73%, 71%)
CMYK	cmyk(72.9%, 50.8%, 0%, 29%)
CIE-LAB	lab(39.80, 18.25, -52.94)
CIE-LCH	lch(39.80, 56.00, 289.02°)
OKLab	oklab(48.74% -0.0162 -0.1522)
OKLCH	oklch(48.74% 0.153 263.9)
XYZ	xyz(13.1765, 11.1325, 45.1615)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3159B5 #B58D31

analogous

#319BB5 #3159B5 #4B31B5

triadic

#3159B5 #B53159 #59B531

tetradic

#3159B5 #B5319B #B58D31 #31B54B

square

#3159B5 #B5319B #B58D31 #31B54B

split-complementary

#3159B5 #B54B31 #9BB531

monochromatic

#172A55 #244185 #3159B5 #5379D0 #839EDD

Accessibility & contrast

On white

6.51

#3159B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3159B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3159B5

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3159B5	#FFFFFF	#000000	##FFFFFF
##3159B5	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2164B8

Deuteranopia (green-blind)

#0058B3

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3159b5;
/* rgb */ color: rgb(49, 89, 181);
/* oklch */ color: oklch(48.7% 0.153 263.9);

Tailwind

colors: {
  custom: {
    50: '#7b87cc',
    500: '#3159b5',
    950: '#000000',
  },
}

SCSS

$custom: #3159b5;
$custom-light: #7b87cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3159b5",
  "rgb": {
    "r": 49,
    "g": 89,
    "b": 181
  },
  "hsl": {
    "h": 221.818,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.48742,
    "c": 0.15302,
    "h": 263.9
  },
  "luminance": 0.11134
}

Semantic roles & 50–950 ramp

primary

#3159B5

secondary

#C7B07B

accent

#B247E1

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3159B5

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

Preview Lab → · Contrast checker → · Palette generator →