#3145AA#3145AA

#3145AA is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.8% C 0.163 H 269.8°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#3145AA
RGB	rgb(49, 69, 170)
HSL	hsl(230, 55%, 43%)
HSV	hsv(230, 71%, 67%)
CMYK	cmyk(71.2%, 59.4%, 0%, 33.3%)
CIE-LAB	lab(33.58, 27.31, -56.51)
CIE-LCH	lch(33.58, 62.76, 295.79°)
OKLab	oklab(43.8% -0.0005 -0.163)
OKLCH	oklch(43.8% 0.163 269.8)
XYZ	xyz(10.6480, 7.8104, 38.9688)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3145AA #AA9631

analogous

#3181AA #3145AA #5A31AA

triadic

#3145AA #AA3145 #45AA31

tetradic

#3145AA #AA3181 #AA9631 #31AA5A

square

#3145AA #AA3181 #AA9631 #31AA5A

split-complementary

#3145AA #AA5A31 #81AA31

monochromatic

#161E4B #23327A #3145AA #4D62CC #7C8CD9

Accessibility & contrast

On white

8.20

#3145AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3145AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3145AA

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3145AA	#FFFFFF	#000000	##FFFFFF
##3145AA	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AD

Deuteranopia (green-blind)

#004AA8

Tritanopia (blue-blind)

#005E70

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3145aa;
/* rgb */ color: rgb(49, 69, 170);
/* oklch */ color: oklch(43.8% 0.163 269.8);

Tailwind

colors: {
  custom: {
    50: '#7978c4',
    500: '#3145aa',
    950: '#000000',
  },
}

SCSS

$custom: #3145aa;
$custom-light: #7978c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3145aa",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 170
  },
  "hsl": {
    "h": 230.083,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.43799,
    "c": 0.16295,
    "h": 269.8
  },
  "luminance": 0.07811
}

Semantic roles & 50–950 ramp

primary

#3145AA

secondary

#C2B575

accent

#C649DF

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #3145AA

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

Preview Lab → · Contrast checker → · Palette generator →