#3950B4#3950B4

#3950B4 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.2% C 0.161 H 269.5°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#3950B4
RGB	rgb(57, 80, 180)
HSL	hsl(229, 52%, 46%)
HSV	hsv(229, 68%, 71%)
CMYK	cmyk(68.3%, 55.6%, 0%, 29.4%)
CIE-LAB	lab(37.66, 24.92, -55.79)
CIE-LCH	lch(37.66, 61.11, 294.07°)
OKLab	oklab(47.21% -0.0014 -0.1605)
OKLCH	oklch(47.21% 0.161 269.5)
XYZ	xyz(12.7914, 9.9012, 44.4082)
Luminance	0.0990 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3950B4 #B49D39

analogous

#398EB4 #3950B4 #5F39B4

triadic

#3950B4 #B43950 #50B439

tetradic

#3950B4 #B4398E #B49D39 #39B45F

square

#3950B4 #B4398E #B49D39 #39B45F

split-complementary

#3950B4 #B45F39 #8EB439

monochromatic

#1C2757 #2A3B86 #3950B4 #5E73CC #8D9BDB

Accessibility & contrast

On white

7.05

#3950B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#3950B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3950B4

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3950B4	#FFFFFF	#000000	##FFFFFF
##3950B4	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB7

Deuteranopia (green-blind)

#0053B2

Tritanopia (blue-blind)

#00687A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3950b4;
/* rgb */ color: rgb(57, 80, 180);
/* oklch */ color: oklch(47.2% 0.161 269.5);

Tailwind

colors: {
  custom: {
    50: '#7e80cb',
    500: '#3950b4',
    950: '#000000',
  },
}

SCSS

$custom: #3950b4;
$custom-light: #7e80cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3950b4",
  "rgb": {
    "r": 57,
    "g": 80,
    "b": 180
  },
  "hsl": {
    "h": 228.78,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.47205,
    "c": 0.16054,
    "h": 269.5
  },
  "luminance": 0.09902
}

Semantic roles & 50–950 ramp

primary

#3950B4

secondary

#C5B983

accent

#C14CDB

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3950B4

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

Preview Lab → · Contrast checker → · Palette generator →