#3140B8#3140B8

#3140B8 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.1% C 0.188 H 270.8°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#3140B8
RGB	rgb(49, 64, 184)
HSL	hsl(233, 58%, 46%)
HSV	hsv(233, 73%, 72%)
CMYK	cmyk(73.4%, 65.2%, 0%, 27.8%)
CIE-LAB	lab(33.52, 35.63, -64.93)
CIE-LCH	lch(33.52, 74.06, 298.75°)
OKLab	oklab(44.12% 0.0026 -0.1877)
OKLCH	oklch(44.12% 0.188 270.8)
XYZ	xyz(11.7488, 7.7792, 46.2205)
Luminance	0.0778 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3140B8 #B8A931

analogous

#3183B8 #3140B8 #6531B8

triadic

#3140B8 #B83140 #40B831

tetradic

#3140B8 #B83183 #B8A931 #31B865

square

#3140B8 #B83183 #B8A931 #31B865

split-complementary

#3140B8 #B86531 #83B831

monochromatic

#171E57 #242F88 #3140B8 #5562D2 #858FDE

Accessibility & contrast

On white

8.22

#3140B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3140B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3140B8

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3140B8	#FFFFFF	#000000	##FFFFFF
##3140B8	1.00	8.22	2.56	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BC

Deuteranopia (green-blind)

#0049B6

Tritanopia (blue-blind)

#006076

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3140b8;
/* rgb */ color: rgb(49, 64, 184);
/* oklch */ color: oklch(44.1% 0.188 270.8);

Tailwind

colors: {
  custom: {
    50: '#7d75ce',
    500: '#3140b8',
    950: '#000000',
  },
}

SCSS

$custom: #3140b8;
$custom-light: #7d75ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3140b8",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 184
  },
  "hsl": {
    "h": 233.333,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.44117,
    "c": 0.18773,
    "h": 270.8
  },
  "luminance": 0.0778
}

Semantic roles & 50–950 ramp

primary

#3140B8

secondary

#C8C07D

accent

#D047E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #3140B8

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

Preview Lab → · Contrast checker → · Palette generator →