#3145B8#3145B8

#3145B8 is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.0% C 0.182 H 269.8°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#3145B8
RGB	rgb(49, 69, 184)
HSL	hsl(231, 58%, 46%)
HSV	hsv(231, 73%, 72%)
CMYK	cmyk(73.4%, 62.5%, 0%, 27.8%)
CIE-LAB	lab(34.74, 32.43, -62.94)
CIE-LCH	lch(34.74, 70.80, 297.26°)
OKLab	oklab(45.01% -0.0007 -0.1818)
OKLCH	oklch(45.01% 0.182 269.8)
XYZ	xyz(12.0435, 8.3686, 46.3187)
Luminance	0.0837 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3145B8 #B8A431

analogous

#3188B8 #3145B8 #6031B8

triadic

#3145B8 #B83145 #45B831

tetradic

#3145B8 #B83188 #B8A431 #31B860

square

#3145B8 #B83188 #B8A431 #31B860

split-complementary

#3145B8 #B86031 #88B831

monochromatic

#172157 #243388 #3145B8 #5567D2 #8592DE

Accessibility & contrast

On white

7.85

#3145B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#3145B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3145B8

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3145B8	#FFFFFF	#000000	##FFFFFF
##3145B8	1.00	7.85	2.67	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BC

Deuteranopia (green-blind)

#004CB6

Tritanopia (blue-blind)

#006378

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3145b8;
/* rgb */ color: rgb(49, 69, 184);
/* oklch */ color: oklch(45.0% 0.182 269.8);

Tailwind

colors: {
  custom: {
    50: '#7c78ce',
    500: '#3145b8',
    950: '#000000',
  },
}

SCSS

$custom: #3145b8;
$custom-light: #7c78ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3145b8",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 184
  },
  "hsl": {
    "h": 231.111,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.45014,
    "c": 0.18182,
    "h": 269.8
  },
  "luminance": 0.0837
}

Semantic roles & 50–950 ramp

primary

#3145B8

secondary

#C8BD7D

accent

#CA47E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3145B8

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

Preview Lab → · Contrast checker → · Palette generator →