#3140A8#3140A8

#3140A8 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.166 H 271.1°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#3140A8
RGB	rgb(49, 64, 168)
HSL	hsl(232, 55%, 43%)
HSV	hsv(232, 71%, 66%)
CMYK	cmyk(70.8%, 61.9%, 0%, 34.1%)
CIE-LAB	lab(32.14, 29.85, -57.67)
CIE-LCH	lch(32.14, 64.94, 297.37°)
OKLab	oklab(42.67% 0.0033 -0.1664)
OKLCH	oklch(42.67% 0.166 271.1)
XYZ	xyz(10.1655, 7.1459, 37.8818)
Luminance	0.0715 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3140A8 #A89931

analogous

#317BA8 #3140A8 #5D31A8

triadic

#3140A8 #A83140 #40A831

tetradic

#3140A8 #A8317B #A89931 #31A85D

square

#3140A8 #A8317B #A89931 #31A85D

split-complementary

#3140A8 #A85D31 #7BA831

monochromatic

#151C49 #232E79 #3140A8 #4C5CCB #7B87D8

Accessibility & contrast

On white

8.64

#3140A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3140A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3140A8

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3140A8	#FFFFFF	#000000	##FFFFFF
##3140A8	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AB

Deuteranopia (green-blind)

#0046A6

Tritanopia (blue-blind)

#005A6E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3140a8;
/* rgb */ color: rgb(49, 64, 168);
/* oklch */ color: oklch(42.7% 0.166 271.1);

Tailwind

colors: {
  custom: {
    50: '#7974c3',
    500: '#3140a8',
    950: '#000000',
  },
}

SCSS

$custom: #3140a8;
$custom-light: #7974c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3140a8",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 168
  },
  "hsl": {
    "h": 232.437,
    "s": 54.839,
    "l": 42.549
  },
  "oklch": {
    "l": 0.42674,
    "c": 0.16646,
    "h": 271.1
  },
  "luminance": 0.07147
}

Semantic roles & 50–950 ramp

primary

#3140A8

secondary

#C1B774

accent

#CB4ADE

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #3140A8

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

Preview Lab → · Contrast checker → · Palette generator →