#3951AC#3951AC

#3951AC is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.8% C 0.148 H 268.9°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#3951AC
RGB	rgb(57, 81, 172)
HSL	hsl(227, 50%, 45%)
HSV	hsv(227, 67%, 67%)
CMYK	cmyk(66.9%, 52.9%, 0%, 32.5%)
CIE-LAB	lab(37.36, 21.36, -51.56)
CIE-LCH	lch(37.36, 55.81, 292.50°)
OKLab	oklab(46.79% -0.0028 -0.1481)
OKLCH	oklch(46.79% 0.148 268.9)
XYZ	xyz(12.0736, 9.7321, 40.2639)
Luminance	0.0973 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3951AC #AC9439

analogous

#398BAC #3951AC #5A39AC

triadic

#3951AC #AC3951 #51AC39

tetradic

#3951AC #AC398B #AC9439 #39AC5A

square

#3951AC #AC398B #AC9439 #39AC5A

split-complementary

#3951AC #AC5A39 #8BAC39

monochromatic

#1B2650 #2A3B7E #3951AC #5A71C8 #8898D8

Accessibility & contrast

On white

7.13

#3951AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#3951AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3951AC

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3951AC	#FFFFFF	#000000	##FFFFFF
##3951AC	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#175DAF

Deuteranopia (green-blind)

#0053AA

Tritanopia (blue-blind)

#006776

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3951ac;
/* rgb */ color: rgb(57, 81, 172);
/* oklch */ color: oklch(46.8% 0.148 268.9);

Tailwind

colors: {
  custom: {
    50: '#7c81c5',
    500: '#3951ac',
    950: '#000000',
  },
}

SCSS

$custom: #3951ac;
$custom-light: #7c81c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3951ac",
  "rgb": {
    "r": 57,
    "g": 81,
    "b": 172
  },
  "hsl": {
    "h": 227.478,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.46791,
    "c": 0.14809,
    "h": 268.9
  },
  "luminance": 0.09733
}

Semantic roles & 50–950 ramp

primary

#3951AC

secondary

#C2B47F

accent

#BD4EDA

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3951AC

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

Preview Lab → · Contrast checker → · Palette generator →