#3139AA#3139AA

#3139AA is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.178 H 272.7°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#3139AA
RGB	rgb(49, 57, 170)
HSL	hsl(236, 55%, 43%)
HSV	hsv(236, 71%, 67%)
CMYK	cmyk(71.2%, 66.5%, 0%, 33.3%)
CIE-LAB	lab(30.59, 35.07, -61.39)
CIE-LCH	lch(30.59, 70.71, 299.74°)
OKLab	oklab(41.6% 0.0083 -0.1774)
OKLCH	oklch(41.6% 0.178 272.7)
XYZ	xyz(9.9830, 6.4805, 38.7472)
Luminance	0.0648 (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

#3139AA #AAA231

analogous

#3175AA #3139AA #6531AA

triadic

#3139AA #AA3139 #39AA31

tetradic

#3139AA #AA3175 #AAA231 #31AA65

square

#3139AA #AA3175 #AAA231 #31AA65

split-complementary

#3139AA #AA6531 #75AA31

monochromatic

#16194B #23297A #3139AA #4D55CC #7C82D9

Accessibility & contrast

On white

9.14

#3139AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#3139AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3139AA

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3139AA	#FFFFFF	#000000	##FFFFFF
##3139AA	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAE

Deuteranopia (green-blind)

#0042A8

Tritanopia (blue-blind)

#00576C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3139aa;
/* rgb */ color: rgb(49, 57, 170);
/* oklch */ color: oklch(41.6% 0.178 272.7);

Tailwind

colors: {
  custom: {
    50: '#7a6fc4',
    500: '#3139aa',
    950: '#000000',
  },
}

SCSS

$custom: #3139aa;
$custom-light: #7a6fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3139aa",
  "rgb": {
    "r": 49,
    "g": 57,
    "b": 170
  },
  "hsl": {
    "h": 236.033,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.41595,
    "c": 0.17758,
    "h": 272.7
  },
  "luminance": 0.06482
}

Semantic roles & 50–950 ramp

primary

#3139AA

secondary

#C2BD75

accent

#D549DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3139AA

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

Preview Lab → · Contrast checker → · Palette generator →