#3145A5#3145A5

#3145A5 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.4% C 0.156 H 269.8°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#3145A5
RGB	rgb(49, 69, 165)
HSL	hsl(230, 54%, 42%)
HSV	hsv(230, 70%, 65%)
CMYK	cmyk(70.3%, 58.2%, 0%, 35.3%)
CIE-LAB	lab(33.19, 25.46, -54.16)
CIE-LCH	lch(33.19, 59.84, 295.18°)
OKLab	oklab(43.38% -0.0006 -0.156)
OKLCH	oklch(43.38% 0.156 269.8)
XYZ	xyz(10.1840, 7.6248, 36.5251)
Luminance	0.0763 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3145A5 #A59131

analogous

#317FA5 #3145A5 #5731A5

triadic

#3145A5 #A53145 #45A531

tetradic

#3145A5 #A5317F #A59131 #31A557

square

#3145A5 #A5317F #A59131 #31A557

split-complementary

#3145A5 #A55731 #7FA531

monochromatic

#151E47 #233176 #3145A5 #4A60C9 #7989D7

Accessibility & contrast

On white

8.32

#3145A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3145A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3145A5

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3145A5	#FFFFFF	#000000	##FFFFFF
##3145A5	1.00	8.32	2.53	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A8

Deuteranopia (green-blind)

#0049A3

Tritanopia (blue-blind)

#005D6E

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3145a5;
/* rgb */ color: rgb(49, 69, 165);
/* oklch */ color: oklch(43.4% 0.156 269.8);

Tailwind

colors: {
  custom: {
    50: '#7878c0',
    500: '#3145a5',
    950: '#000000',
  },
}

SCSS

$custom: #3145a5;
$custom-light: #7878c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3145a5",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 165
  },
  "hsl": {
    "h": 229.655,
    "s": 54.206,
    "l": 41.961
  },
  "oklch": {
    "l": 0.4338,
    "c": 0.15605,
    "h": 269.8
  },
  "luminance": 0.07626
}

Semantic roles & 50–950 ramp

primary

#3145A5

secondary

#C0B272

accent

#C44ADE

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3145A5

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

Preview Lab → · Contrast checker → · Palette generator →