#3955BF#3955BF

#3955BF is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.1% C 0.169 H 268.3°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#3955BF
RGB	rgb(57, 85, 191)
HSL	hsl(227, 54%, 49%)
HSV	hsv(227, 70%, 75%)
CMYK	cmyk(70.2%, 55.5%, 0%, 25.1%)
CIE-LAB	lab(39.79, 25.67, -58.79)
CIE-LCH	lch(39.79, 64.15, 293.59°)
OKLab	oklab(49.06% -0.005 -0.1693)
OKLCH	oklch(49.06% 0.169 268.3)
XYZ	xyz(14.3366, 11.1270, 50.6723)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3955BF #BFA339

analogous

#3998BF #3955BF #6039BF

triadic

#3955BF #BF3955 #55BF39

tetradic

#3955BF #BF3998 #BFA339 #39BF60

square

#3955BF #BF3998 #BFA339 #39BF60

split-complementary

#3955BF #BF6039 #98BF39

monochromatic

#1D2B61 #2B4090 #3955BF #647BD1 #93A3DF

Accessibility & contrast

On white

6.51

#3955BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3955BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3955BF

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3955BF	#FFFFFF	#000000	##FFFFFF
##3955BF	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C3

Deuteranopia (green-blind)

#0058BD

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3955bf;
/* rgb */ color: rgb(57, 85, 191);
/* oklch */ color: oklch(49.1% 0.169 268.3);

Tailwind

colors: {
  custom: {
    50: '#8084d3',
    500: '#3955bf',
    950: '#000000',
  },
}

SCSS

$custom: #3955bf;
$custom-light: #8084d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3955bf",
  "rgb": {
    "r": 57,
    "g": 85,
    "b": 191
  },
  "hsl": {
    "h": 227.463,
    "s": 54.032,
    "l": 48.627
  },
  "oklch": {
    "l": 0.4906,
    "c": 0.16935,
    "h": 268.3
  },
  "luminance": 0.11128
}

Semantic roles & 50–950 ramp

primary

#3955BF

secondary

#CABD8A

accent

#BF4ADD

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3955BF

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

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