#3969B3#3969B3

#3969B3 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.4% C 0.128 H 258.8°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#3969B3
RGB	rgb(57, 105, 179)
HSL	hsl(216, 52%, 46%)
HSV	hsv(216, 68%, 70%)
CMYK	cmyk(68.2%, 41.3%, 0%, 29.8%)
CIE-LAB	lab(44.56, 8.42, -44.13)
CIE-LCH	lch(44.56, 44.92, 280.80°)
OKLab	oklab(52.45% -0.0249 -0.1258)
OKLCH	oklch(52.45% 0.128 258.8)
XYZ	xyz(14.8727, 14.2262, 44.6012)
Luminance	0.1423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3969B3 #B38339

analogous

#39A6B3 #3969B3 #4639B3

triadic

#3969B3 #B33969 #69B339

tetradic

#3969B3 #B339A6 #B38339 #39B346

square

#3969B3 #B339A6 #B38339 #39B346

split-complementary

#3969B3 #B34639 #A6B339

monochromatic

#1B3356 #2A4E85 #3969B3 #5E89CC #8CABDA

Accessibility & contrast

On white

5.46

#3969B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#3969B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3969B3

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3969B3	#FFFFFF	#000000	##FFFFFF
##3969B3	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#476FB6

Deuteranopia (green-blind)

#3464B1

Tritanopia (blue-blind)

#007A85

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3969b3;
/* rgb */ color: rgb(57, 105, 179);
/* oklch */ color: oklch(52.4% 0.128 258.8);

Tailwind

colors: {
  custom: {
    50: '#7d93ca',
    500: '#3969b3',
    950: '#000000',
  },
}

SCSS

$custom: #3969b3;
$custom-light: #7d93ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3969b3",
  "rgb": {
    "r": 57,
    "g": 105,
    "b": 179
  },
  "hsl": {
    "h": 216.393,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52447,
    "c": 0.12828,
    "h": 258.8
  },
  "luminance": 0.14228
}

Semantic roles & 50–950 ramp

primary

#3969B3

secondary

#C5AB83

accent

#A34DDB

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3969B3

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

Preview Lab → · Contrast checker → · Palette generator →