#3159B4#3159B4

#3159B4 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.7% C 0.152 H 263.8°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#3159B4
RGB	rgb(49, 89, 180)
HSL	hsl(222, 57%, 45%)
HSV	hsv(222, 73%, 71%)
CMYK	cmyk(72.8%, 50.6%, 0%, 29.4%)
CIE-LAB	lab(39.73, 17.87, -52.46)
CIE-LCH	lch(39.73, 55.42, 288.81°)
OKLab	oklab(48.67% -0.0163 -0.1508)
OKLCH	oklch(48.67% 0.152 263.8)
XYZ	xyz(13.0743, 11.0916, 44.6230)
Luminance	0.1109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3159B4 #B48C31

analogous

#319BB4 #3159B4 #4A31B4

triadic

#3159B4 #B43159 #59B431

tetradic

#3159B4 #B4319B #B48C31 #31B44A

square

#3159B4 #B4319B #B48C31 #31B44A

split-complementary

#3159B4 #B44A31 #9BB431

monochromatic

#172954 #244184 #3159B4 #5279D0 #829EDD

Accessibility & contrast

On white

6.52

#3159B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#3159B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3159B4

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3159B4	#FFFFFF	#000000	##FFFFFF
##3159B4	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2264B7

Deuteranopia (green-blind)

#0058B2

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3159b4;
/* rgb */ color: rgb(49, 89, 180);
/* oklch */ color: oklch(48.7% 0.152 263.8);

Tailwind

colors: {
  custom: {
    50: '#7a87cb',
    500: '#3159b4',
    950: '#000000',
  },
}

SCSS

$custom: #3159b4;
$custom-light: #7a87cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3159b4",
  "rgb": {
    "r": 49,
    "g": 89,
    "b": 180
  },
  "hsl": {
    "h": 221.679,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.48668,
    "c": 0.15164,
    "h": 263.8
  },
  "luminance": 0.11093
}

Semantic roles & 50–950 ramp

primary

#3159B4

secondary

#C6AF7B

accent

#B247E0

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3159B4

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

Preview Lab → · Contrast checker → · Palette generator →