#3969B1#3969B1

#3969B1 is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.3% C 0.126 H 258.4°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#3969B1
RGB	rgb(57, 105, 177)
HSL	hsl(216, 51%, 46%)
HSV	hsv(216, 68%, 69%)
CMYK	cmyk(67.8%, 40.7%, 0%, 30.6%)
CIE-LAB	lab(44.44, 7.69, -43.14)
CIE-LCH	lch(44.44, 43.82, 280.11°)
OKLab	oklab(52.32% -0.0253 -0.1229)
OKLCH	oklch(52.32% 0.126 258.4)
XYZ	xyz(14.6719, 14.1459, 43.5437)
Luminance	0.1415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3969B1 #B18139

analogous

#39A5B1 #3969B1 #4539B1

triadic

#3969B1 #B13969 #69B139

tetradic

#3969B1 #B139A5 #B18139 #39B145

square

#3969B1 #B139A5 #B18139 #39B145

split-complementary

#3969B1 #B14539 #A5B139

monochromatic

#1B3254 #2A4E83 #3969B1 #5D89CB #8BAADA

Accessibility & contrast

On white

5.48

#3969B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#3969B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3969B1

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3969B1	#FFFFFF	#000000	##FFFFFF
##3969B1	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#486FB4

Deuteranopia (green-blind)

#3664B0

Tritanopia (blue-blind)

#007A84

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3969b1;
/* rgb */ color: rgb(57, 105, 177);
/* oklch */ color: oklch(52.3% 0.126 258.4);

Tailwind

colors: {
  custom: {
    50: '#7c93c9',
    500: '#3969b1',
    950: '#000000',
  },
}

SCSS

$custom: #3969b1;
$custom-light: #7c93c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3969b1",
  "rgb": {
    "r": 57,
    "g": 105,
    "b": 177
  },
  "hsl": {
    "h": 216,
    "s": 51.282,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52321,
    "c": 0.12553,
    "h": 258.4
  },
  "luminance": 0.14147
}

Semantic roles & 50–950 ramp

primary

#3969B1

secondary

#C4AA82

accent

#A24DDB

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3969B1

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

Preview Lab → · Contrast checker → · Palette generator →