#3140B5#3140B5

#3140B5 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.8% C 0.184 H 270.9°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#3140B5
RGB	rgb(49, 64, 181)
HSL	hsl(233, 57%, 45%)
HSV	hsv(233, 73%, 71%)
CMYK	cmyk(72.9%, 64.6%, 0%, 29%)
CIE-LAB	lab(33.25, 34.55, -63.59)
CIE-LCH	lch(33.25, 72.37, 298.52°)
OKLab	oklab(43.84% 0.0028 -0.1838)
OKLCH	oklch(43.84% 0.184 270.9)
XYZ	xyz(11.4377, 7.6548, 44.5818)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3140B5 #B5A631

analogous

#3182B5 #3140B5 #6431B5

triadic

#3140B5 #B53140 #40B531

tetradic

#3140B5 #B53182 #B5A631 #31B564

square

#3140B5 #B53182 #B5A631 #31B564

split-complementary

#3140B5 #B56431 #82B531

monochromatic

#171E55 #242F85 #3140B5 #5361D0 #838DDD

Accessibility & contrast

On white

8.30

#3140B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3140B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3140B5

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3140B5	#FFFFFF	#000000	##FFFFFF
##3140B5	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B9

Deuteranopia (green-blind)

#0048B3

Tritanopia (blue-blind)

#005F74

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3140b5;
/* rgb */ color: rgb(49, 64, 181);
/* oklch */ color: oklch(43.8% 0.184 270.9);

Tailwind

colors: {
  custom: {
    50: '#7c75cc',
    500: '#3140b5',
    950: '#000000',
  },
}

SCSS

$custom: #3140b5;
$custom-light: #7c75cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3140b5",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 181
  },
  "hsl": {
    "h": 233.182,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.43841,
    "c": 0.18381,
    "h": 270.9
  },
  "luminance": 0.07656
}

Semantic roles & 50–950 ramp

primary

#3140B5

secondary

#C7BE7B

accent

#CF47E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3140B5

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

Preview Lab → · Contrast checker → · Palette generator →