#3951BE#3951BE

#3951BE is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.2% C 0.173 H 269.4°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#3951BE
RGB	rgb(57, 81, 190)
HSL	hsl(229, 54%, 48%)
HSV	hsv(229, 70%, 75%)
CMYK	cmyk(70%, 57.4%, 0%, 25.5%)
CIE-LAB	lab(38.67, 27.89, -60.03)
CIE-LCH	lch(38.67, 66.19, 294.92°)
OKLab	oklab(48.2% -0.0018 -0.173)
OKLCH	oklch(48.2% 0.173 269.4)
XYZ	xyz(13.9209, 10.4710, 49.9927)
Luminance	0.1047 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3951BE #BEA639

analogous

#3993BE #3951BE #6339BE

triadic

#3951BE #BE3951 #51BE39

tetradic

#3951BE #BE3993 #BEA639 #39BE63

square

#3951BE #BE3993 #BEA639 #39BE63

split-complementary

#3951BE #BE6339 #93BE39

monochromatic

#1D2960 #2B3D8F #3951BE #6477D0 #93A1DF

Accessibility & contrast

On white

6.79

#3951BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#3951BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3951BE

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3951BE	#FFFFFF	#000000	##FFFFFF
##3951BE	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C2

Deuteranopia (green-blind)

#0055BC

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3951be;
/* rgb */ color: rgb(57, 81, 190);
/* oklch */ color: oklch(48.2% 0.173 269.4);

Tailwind

colors: {
  custom: {
    50: '#8081d2',
    500: '#3951be',
    950: '#000000',
  },
}

SCSS

$custom: #3951be;
$custom-light: #8081d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3951be",
  "rgb": {
    "r": 57,
    "g": 81,
    "b": 190
  },
  "hsl": {
    "h": 229.173,
    "s": 53.846,
    "l": 48.431
  },
  "oklch": {
    "l": 0.48198,
    "c": 0.17297,
    "h": 269.4
  },
  "luminance": 0.10472
}

Semantic roles & 50–950 ramp

primary

#3951BE

secondary

#CABE89

accent

#C34BDD

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3951BE

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

Preview Lab → · Contrast checker → · Palette generator →