#3159BC#3159BC

#3159BC is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.3% C 0.163 H 264.6°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#3159BC
RGB	rgb(49, 89, 188)
HSL	hsl(223, 59%, 46%)
HSV	hsv(223, 74%, 74%)
CMYK	cmyk(73.9%, 52.7%, 0%, 26.3%)
CIE-LAB	lab(40.29, 20.88, -56.25)
CIE-LCH	lch(40.29, 60.00, 290.36°)
OKLab	oklab(49.27% -0.0154 -0.1619)
OKLCH	oklch(49.27% 0.163 264.6)
XYZ	xyz(13.9129, 11.4271, 49.0396)
Luminance	0.1143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3159BC #BC9431

analogous

#319FBC #3159BC #4F31BC

triadic

#3159BC #BC3159 #59BC31

tetradic

#3159BC #BC319F #BC9431 #31BC4F

square

#3159BC #BC319F #BC9431 #31BC4F

split-complementary

#3159BC #BC4F31 #9FBC31

monochromatic

#182B5B #24428B #3159BC #577BD3 #88A1E0

Accessibility & contrast

On white

6.39

#3159BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#3159BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3159BC

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3159BC	#FFFFFF	#000000	##FFFFFF
##3159BC	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1466C0

Deuteranopia (green-blind)

#0059BA

Tritanopia (blue-blind)

#007182

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3159bc;
/* rgb */ color: rgb(49, 89, 188);
/* oklch */ color: oklch(49.3% 0.163 264.6);

Tailwind

colors: {
  custom: {
    50: '#7c87d1',
    500: '#3159bc',
    950: '#000000',
  },
}

SCSS

$custom: #3159bc;
$custom-light: #7c87d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3159bc",
  "rgb": {
    "r": 49,
    "g": 89,
    "b": 188
  },
  "hsl": {
    "h": 222.734,
    "s": 58.65,
    "l": 46.471
  },
  "oklch": {
    "l": 0.49268,
    "c": 0.16263,
    "h": 264.6
  },
  "luminance": 0.11429
}

Semantic roles & 50–950 ramp

primary

#3159BC

secondary

#CAB47F

accent

#B546E2

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3159BC

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

Preview Lab → · Contrast checker → · Palette generator →