#3140B2#3140B2

#3140B2 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.6% C 0.180 H 270.9°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#3140B2
RGB	rgb(49, 64, 178)
HSL	hsl(233, 57%, 45%)
HSV	hsv(233, 72%, 70%)
CMYK	cmyk(72.5%, 64%, 0%, 30.2%)
CIE-LAB	lab(32.99, 33.47, -62.24)
CIE-LCH	lch(32.99, 70.67, 298.27°)
OKLab	oklab(43.57% 0.003 -0.1798)
OKLCH	oklch(43.57% 0.18 270.9)
XYZ	xyz(11.1332, 7.5330, 42.9781)
Luminance	0.0753 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3140B2 #B2A331

analogous

#3181B2 #3140B2 #6231B2

triadic

#3140B2 #B23140 #40B231

tetradic

#3140B2 #B23181 #B2A331 #31B262

square

#3140B2 #B23181 #B2A331 #31B262

split-complementary

#3140B2 #B26231 #81B231

monochromatic

#171D52 #242F82 #3140B2 #5160CF #818CDC

Accessibility & contrast

On white

8.38

#3140B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#3140B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3140B2

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3140B2	#FFFFFF	#000000	##FFFFFF
##3140B2	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B6

Deuteranopia (green-blind)

#0048B0

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3140b2;
/* rgb */ color: rgb(49, 64, 178);
/* oklch */ color: oklch(43.6% 0.180 270.9);

Tailwind

colors: {
  custom: {
    50: '#7c75ca',
    500: '#3140b2',
    950: '#000000',
  },
}

SCSS

$custom: #3140b2;
$custom-light: #7c75ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3140b2",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 178
  },
  "hsl": {
    "h": 233.023,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43567,
    "c": 0.17985,
    "h": 270.9
  },
  "luminance": 0.07534
}

Semantic roles & 50–950 ramp

primary

#3140B2

secondary

#C5BD79

accent

#CE48E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3140B2

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

Preview Lab → · Contrast checker → · Palette generator →