#3140BB#3140BB

#3140BB is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.4% C 0.192 H 270.7°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#3140BB
RGB	rgb(49, 64, 187)
HSL	hsl(233, 58%, 46%)
HSV	hsv(233, 74%, 73%)
CMYK	cmyk(73.8%, 65.8%, 0%, 26.7%)
CIE-LAB	lab(33.79, 36.70, -66.26)
CIE-LCH	lch(33.79, 75.75, 298.98°)
OKLab	oklab(44.4% 0.0024 -0.1916)
OKLCH	oklch(44.4% 0.192 270.7)
XYZ	xyz(12.0666, 7.9064, 47.8942)
Luminance	0.0791 (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

#3140BB #BBAC31

analogous

#3185BB #3140BB #6731BB

triadic

#3140BB #BB3140 #40BB31

tetradic

#3140BB #BB3185 #BBAC31 #31BB67

square

#3140BB #BB3185 #BBAC31 #31BB67

split-complementary

#3140BB #BB6731 #85BB31

monochromatic

#181F5A #242F8B #3140BB #5664D3 #8791E0

Accessibility & contrast

On white

8.13

#3140BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3140BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3140BB

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3140BB	#FFFFFF	#000000	##FFFFFF
##3140BB	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056BF

Deuteranopia (green-blind)

#0049B9

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3140bb;
/* rgb */ color: rgb(49, 64, 187);
/* oklch */ color: oklch(44.4% 0.192 270.7);

Tailwind

colors: {
  custom: {
    50: '#7e75d1',
    500: '#3140bb',
    950: '#000000',
  },
}

SCSS

$custom: #3140bb;
$custom-light: #7e75d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3140bb",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 187
  },
  "hsl": {
    "h": 233.478,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.44395,
    "c": 0.19162,
    "h": 270.7
  },
  "luminance": 0.07908
}

Semantic roles & 50–950 ramp

primary

#3140BB

secondary

#C9C17F

accent

#D146E2

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #3140BB

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

Preview Lab → · Contrast checker → · Palette generator →