#3950B7#3950B7

#3950B7 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.4% C 0.165 H 269.6°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#3950B7
RGB	rgb(57, 80, 183)
HSL	hsl(229, 53%, 47%)
HSV	hsv(229, 69%, 72%)
CMYK	cmyk(68.9%, 56.3%, 0%, 28.2%)
CIE-LAB	lab(37.89, 26.00, -57.20)
CIE-LCH	lch(37.89, 62.83, 294.45°)
OKLab	oklab(47.44% -0.0012 -0.1647)
OKLCH	oklch(47.44% 0.165 269.6)
XYZ	xyz(13.1003, 10.0248, 46.0352)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3950B7 #B7A039

analogous

#398FB7 #3950B7 #6139B7

triadic

#3950B7 #B73950 #50B739

tetradic

#3950B7 #B7398F #B7A039 #39B761

square

#3950B7 #B7398F #B7A039 #39B761

split-complementary

#3950B7 #B76139 #8FB739

monochromatic

#1C275A #2A3C88 #3950B7 #6074CD #8E9DDC

Accessibility & contrast

On white

6.99

#3950B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#3950B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3950B7

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3950B7	#FFFFFF	#000000	##FFFFFF
##3950B7	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBB

Deuteranopia (green-blind)

#0054B5

Tritanopia (blue-blind)

#00697B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3950b7;
/* rgb */ color: rgb(57, 80, 183);
/* oklch */ color: oklch(47.4% 0.165 269.6);

Tailwind

colors: {
  custom: {
    50: '#7f80cd',
    500: '#3950b7',
    950: '#000000',
  },
}

SCSS

$custom: #3950b7;
$custom-light: #7f80cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3950b7",
  "rgb": {
    "r": 57,
    "g": 80,
    "b": 183
  },
  "hsl": {
    "h": 229.048,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.47442,
    "c": 0.16467,
    "h": 269.6
  },
  "luminance": 0.10026
}

Semantic roles & 50–950 ramp

primary

#3950B7

secondary

#C7BB85

accent

#C24CDC

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3950B7

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

Preview Lab → · Contrast checker → · Palette generator →