#3969BB#3969BB

#3969BB is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.0% C 0.139 H 260.4°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3969BB
RGB	rgb(57, 105, 187)
HSL	hsl(218, 53%, 48%)
HSV	hsv(218, 70%, 73%)
CMYK	cmyk(69.5%, 43.9%, 0%, 26.7%)
CIE-LAB	lab(45.02, 11.34, -48.04)
CIE-LCH	lch(45.02, 49.36, 283.28°)
OKLab	oklab(52.96% -0.0233 -0.1373)
OKLCH	oklch(52.96% 0.139 260.4)
XYZ	xyz(15.7053, 14.5592, 48.9866)
Luminance	0.1456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3969BB #BB8B39

analogous

#39AABB #3969BB #4A39BB

triadic

#3969BB #BB3969 #69BB39

tetradic

#3969BB #BB39AA #BB8B39 #39BB4A

square

#3969BB #BB39AA #BB8B39 #39BB4A

split-complementary

#3969BB #BB4A39 #AABB39

monochromatic

#1C345D #2B4F8C #3969BB #628ACF #91ADDD

Accessibility & contrast

On white

5.37

#3969BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#3969BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3969BB

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3969BB	#FFFFFF	#000000	##FFFFFF
##3969BB	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4171BE

Deuteranopia (green-blind)

#2A65B9

Tritanopia (blue-blind)

#007C89

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3969bb;
/* rgb */ color: rgb(57, 105, 187);
/* oklch */ color: oklch(53.0% 0.139 260.4);

Tailwind

colors: {
  custom: {
    50: '#7e93d0',
    500: '#3969bb',
    950: '#000000',
  },
}

SCSS

$custom: #3969bb;
$custom-light: #7e93d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3969bb",
  "rgb": {
    "r": 57,
    "g": 105,
    "b": 187
  },
  "hsl": {
    "h": 217.846,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.52961,
    "c": 0.13928,
    "h": 260.4
  },
  "luminance": 0.14561
}

Semantic roles & 50–950 ramp

primary

#3969BB

secondary

#C8B087

accent

#A74BDD

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3969BB

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

Preview Lab → · Contrast checker → · Palette generator →