#3447B3#3447B3

#3447B3 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.1% C 0.172 H 270.3°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#3447B3
RGB	rgb(52, 71, 179)
HSL	hsl(231, 55%, 45%)
HSV	hsv(231, 71%, 70%)
CMYK	cmyk(70.9%, 60.3%, 0%, 29.8%)
CIE-LAB	lab(34.98, 29.70, -59.57)
CIE-LCH	lch(34.98, 66.57, 296.50°)
OKLab	oklab(45.11% 0.0009 -0.1719)
OKLCH	oklch(45.11% 0.172 270.3)
XYZ	xyz(11.8033, 8.4900, 43.6558)
Luminance	0.0849 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3447B3 #B3A034

analogous

#3486B3 #3447B3 #6134B3

triadic

#3447B3 #B33447 #47B334

tetradic

#3447B3 #B33486 #B3A034 #34B361

square

#3447B3 #B33486 #B3A034 #34B361

split-complementary

#3447B3 #B36134 #86B334

monochromatic

#182154 #263484 #3447B3 #5668CE #8693DC

Accessibility & contrast

On white

7.78

#3447B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3447B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3447B3

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3447B3	#FFFFFF	#000000	##FFFFFF
##3447B3	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B7

Deuteranopia (green-blind)

#004DB1

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3447b3;
/* rgb */ color: rgb(52, 71, 179);
/* oklch */ color: oklch(45.1% 0.172 270.3);

Tailwind

colors: {
  custom: {
    50: '#7c7acb',
    500: '#3447b3',
    950: '#000000',
  },
}

SCSS

$custom: #3447b3;
$custom-light: #7c7acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3447b3",
  "rgb": {
    "r": 52,
    "g": 71,
    "b": 179
  },
  "hsl": {
    "h": 231.024,
    "s": 54.978,
    "l": 45.294
  },
  "oklch": {
    "l": 0.45108,
    "c": 0.17187,
    "h": 270.3
  },
  "luminance": 0.08491
}

Semantic roles & 50–950 ramp

primary

#3447B3

secondary

#C5BB7D

accent

#C849DE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3447B3

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

Preview Lab → · Contrast checker → · Palette generator →