#3950AB#3950AB

#3950AB is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.5% C 0.148 H 269.2°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#3950AB
RGB	rgb(57, 80, 171)
HSL	hsl(228, 50%, 45%)
HSV	hsv(228, 67%, 67%)
CMYK	cmyk(66.7%, 53.2%, 0%, 32.9%)
CIE-LAB	lab(37.02, 21.65, -51.52)
CIE-LCH	lch(37.02, 55.88, 292.79°)
OKLab	oklab(46.51% -0.002 -0.1479)
OKLCH	oklch(46.51% 0.148 269.2)
XYZ	xyz(11.9042, 9.5463, 39.7355)
Luminance	0.0955 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3950AB #AB9439

analogous

#3989AB #3950AB #5B39AB

triadic

#3950AB #AB3950 #50AB39

tetradic

#3950AB #AB3989 #AB9439 #39AB5B

square

#3950AB #AB3989 #AB9439 #39AB5B

split-complementary

#3950AB #AB5B39 #89AB39

monochromatic

#1A254F #2A3B7D #3950AB #5970C8 #8797D7

Accessibility & contrast

On white

7.22

#3950AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#3950AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3950AB

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3950AB	#FFFFFF	#000000	##FFFFFF
##3950AB	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#145CAE

Deuteranopia (green-blind)

#0052A9

Tritanopia (blue-blind)

#006675

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3950ab;
/* rgb */ color: rgb(57, 80, 171);
/* oklch */ color: oklch(46.5% 0.148 269.2);

Tailwind

colors: {
  custom: {
    50: '#7c80c5',
    500: '#3950ab',
    950: '#000000',
  },
}

SCSS

$custom: #3950ab;
$custom-light: #7c80c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3950ab",
  "rgb": {
    "r": 57,
    "g": 80,
    "b": 171
  },
  "hsl": {
    "h": 227.895,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46511,
    "c": 0.14796,
    "h": 269.2
  },
  "luminance": 0.09547
}

Semantic roles & 50–950 ramp

primary

#3950AB

secondary

#C1B47F

accent

#BD4EDA

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3950AB

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

Preview Lab → · Contrast checker → · Palette generator →