#3951BA#3951BA

#3951BA is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.9% C 0.168 H 269.3°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#3951BA
RGB	rgb(57, 81, 186)
HSL	hsl(229, 53%, 48%)
HSV	hsv(229, 69%, 73%)
CMYK	cmyk(69.4%, 56.5%, 0%, 27.1%)
CIE-LAB	lab(38.37, 26.44, -58.17)
CIE-LCH	lch(38.37, 63.90, 294.44°)
OKLab	oklab(47.88% -0.002 -0.1675)
OKLCH	oklch(47.88% 0.168 269.3)
XYZ	xyz(13.4897, 10.2986, 47.7218)
Luminance	0.1030 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3951BA #BAA239

analogous

#3992BA #3951BA #6139BA

triadic

#3951BA #BA3951 #51BA39

tetradic

#3951BA #BA3992 #BAA239 #39BA61

square

#3951BA #BA3992 #BAA239 #39BA61

split-complementary

#3951BA #BA6139 #92BA39

monochromatic

#1C285C #2B3D8B #3951BA #6176CF #909FDD

Accessibility & contrast

On white

6.86

#3951BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#3951BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3951BA

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3951BA	#FFFFFF	#000000	##FFFFFF
##3951BA	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BE

Deuteranopia (green-blind)

#0055B8

Tritanopia (blue-blind)

#006B7D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3951ba;
/* rgb */ color: rgb(57, 81, 186);
/* oklch */ color: oklch(47.9% 0.168 269.3);

Tailwind

colors: {
  custom: {
    50: '#7f81cf',
    500: '#3951ba',
    950: '#000000',
  },
}

SCSS

$custom: #3951ba;
$custom-light: #7f81cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3951ba",
  "rgb": {
    "r": 57,
    "g": 81,
    "b": 186
  },
  "hsl": {
    "h": 228.837,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47877,
    "c": 0.16753,
    "h": 269.3
  },
  "luminance": 0.103
}

Semantic roles & 50–950 ramp

primary

#3951BA

secondary

#C8BC87

accent

#C14BDC

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3951BA

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

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