#3969B7#3969B7

#3969B7 is a mid, vivid blue. Relative luminance 0.144; OKLCH L 52.7% C 0.134 H 259.6°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#3969B7
RGB	rgb(57, 105, 183)
HSL	hsl(217, 53%, 47%)
HSV	hsv(217, 69%, 72%)
CMYK	cmyk(68.9%, 42.6%, 0%, 28.2%)
CIE-LAB	lab(44.79, 9.88, -46.09)
CIE-LCH	lch(44.79, 47.14, 282.09°)
OKLab	oklab(52.7% -0.024 -0.1316)
OKLCH	oklch(52.7% 0.134 259.6)
XYZ	xyz(15.2831, 14.3903, 46.7627)
Luminance	0.1439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3969B7 #B78739

analogous

#39A8B7 #3969B7 #4839B7

triadic

#3969B7 #B73969 #69B739

tetradic

#3969B7 #B739A8 #B78739 #39B748

square

#3969B7 #B739A8 #B78739 #39B748

split-complementary

#3969B7 #B74839 #A8B739

monochromatic

#1C335A #2A4E88 #3969B7 #608ACD #8EACDC

Accessibility & contrast

On white

5.41

#3969B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#3969B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3969B7

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3969B7	#FFFFFF	#000000	##FFFFFF
##3969B7	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4470BA

Deuteranopia (green-blind)

#2F65B5

Tritanopia (blue-blind)

#007B87

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3969b7;
/* rgb */ color: rgb(57, 105, 183);
/* oklch */ color: oklch(52.7% 0.134 259.6);

Tailwind

colors: {
  custom: {
    50: '#7e93cd',
    500: '#3969b7',
    950: '#000000',
  },
}

SCSS

$custom: #3969b7;
$custom-light: #7e93cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3969b7",
  "rgb": {
    "r": 57,
    "g": 105,
    "b": 183
  },
  "hsl": {
    "h": 217.143,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.52702,
    "c": 0.13378,
    "h": 259.6
  },
  "luminance": 0.14392
}

Semantic roles & 50–950 ramp

primary

#3969B7

secondary

#C7AE85

accent

#A54CDC

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3969B7

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

Preview Lab → · Contrast checker → · Palette generator →