#3955BC#3955BC

#3955BC is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.8% C 0.165 H 268.2°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#3955BC
RGB	rgb(57, 85, 188)
HSL	hsl(227, 53%, 48%)
HSV	hsv(227, 70%, 74%)
CMYK	cmyk(69.7%, 54.8%, 0%, 26.3%)
CIE-LAB	lab(39.57, 24.58, -57.40)
CIE-LCH	lch(39.57, 62.44, 293.18°)
OKLab	oklab(48.83% -0.0052 -0.1652)
OKLCH	oklch(48.83% 0.165 268.2)
XYZ	xyz(14.0098, 10.9963, 48.9514)
Luminance	0.1100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3955BC #BCA039

analogous

#3996BC #3955BC #5F39BC

triadic

#3955BC #BC3955 #55BC39

tetradic

#3955BC #BC3996 #BCA039 #39BC5F

square

#3955BC #BC3996 #BCA039 #39BC5F

split-complementary

#3955BC #BC5F39 #96BC39

monochromatic

#1D2B5E #2B408D #3955BC #637AD0 #92A2DE

Accessibility & contrast

On white

6.56

#3955BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3955BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3955BC

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3955BC	#FFFFFF	#000000	##FFFFFF
##3955BC	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#0057BA

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3955bc;
/* rgb */ color: rgb(57, 85, 188);
/* oklch */ color: oklch(48.8% 0.165 268.2);

Tailwind

colors: {
  custom: {
    50: '#7f84d1',
    500: '#3955bc',
    950: '#000000',
  },
}

SCSS

$custom: #3955bc;
$custom-light: #7f84d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3955bc",
  "rgb": {
    "r": 57,
    "g": 85,
    "b": 188
  },
  "hsl": {
    "h": 227.176,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.48826,
    "c": 0.16526,
    "h": 268.2
  },
  "luminance": 0.10998
}

Semantic roles & 50–950 ramp

primary

#3955BC

secondary

#C9BB88

accent

#BE4BDD

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3955BC

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

Preview Lab → · Contrast checker → · Palette generator →