#3969B9#3969B9

#3969B9 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 52.8% C 0.137 H 260.0°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3969B9
RGB	rgb(57, 105, 185)
HSL	hsl(218, 53%, 47%)
HSV	hsv(218, 69%, 73%)
CMYK	cmyk(69.2%, 43.2%, 0%, 27.5%)
CIE-LAB	lab(44.91, 10.60, -47.06)
CIE-LCH	lch(44.91, 48.24, 282.70°)
OKLab	oklab(52.83% -0.0236 -0.1345)
OKLCH	oklch(52.83% 0.137 260)
XYZ	xyz(15.4927, 14.4742, 47.8668)
Luminance	0.1448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3969B9 #B98939

analogous

#39A9B9 #3969B9 #4939B9

triadic

#3969B9 #B93969 #69B939

tetradic

#3969B9 #B939A9 #B98939 #39B949

square

#3969B9 #B939A9 #B98939 #39B949

split-complementary

#3969B9 #B94939 #A9B939

monochromatic

#1C345B #2B4E8A #3969B9 #618ACE #90ADDD

Accessibility & contrast

On white

5.39

#3969B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#3969B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3969B9

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3969B9	#FFFFFF	#000000	##FFFFFF
##3969B9	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4371BC

Deuteranopia (green-blind)

#2D65B7

Tritanopia (blue-blind)

#007C88

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3969b9;
/* rgb */ color: rgb(57, 105, 185);
/* oklch */ color: oklch(52.8% 0.137 260.0);

Tailwind

colors: {
  custom: {
    50: '#7e93ce',
    500: '#3969b9',
    950: '#000000',
  },
}

SCSS

$custom: #3969b9;
$custom-light: #7e93ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3969b9",
  "rgb": {
    "r": 57,
    "g": 105,
    "b": 185
  },
  "hsl": {
    "h": 217.5,
    "s": 52.893,
    "l": 47.451
  },
  "oklch": {
    "l": 0.52831,
    "c": 0.13653,
    "h": 260
  },
  "luminance": 0.14476
}

Semantic roles & 50–950 ramp

primary

#3969B9

secondary

#C8AF86

accent

#A64BDC

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3969B9

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

Preview Lab → · Contrast checker → · Palette generator →