#3954BC#3954BC

#3954BC is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.6% C 0.167 H 268.5°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#3954BC
RGB	rgb(57, 84, 188)
HSL	hsl(228, 53%, 48%)
HSV	hsv(228, 70%, 74%)
CMYK	cmyk(69.7%, 55.3%, 0%, 26.3%)
CIE-LAB	lab(39.31, 25.22, -57.83)
CIE-LCH	lch(39.31, 63.09, 293.57°)
OKLab	oklab(48.63% -0.0044 -0.1664)
OKLCH	oklch(48.63% 0.167 268.5)
XYZ	xyz(13.9316, 10.8400, 48.9253)
Luminance	0.1084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3954BC #BCA139

analogous

#3995BC #3954BC #6039BC

triadic

#3954BC #BC3954 #54BC39

tetradic

#3954BC #BC3995 #BCA139 #39BC60

square

#3954BC #BC3995 #BCA139 #39BC60

split-complementary

#3954BC #BC6039 #95BC39

monochromatic

#1D2A5E #2B3F8D #3954BC #6379D0 #92A1DE

Accessibility & contrast

On white

6.63

#3954BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#3954BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3954BC

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3954BC	#FFFFFF	#000000	##FFFFFF
##3954BC	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#0057BA

Tritanopia (blue-blind)

#006D80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3954bc;
/* rgb */ color: rgb(57, 84, 188);
/* oklch */ color: oklch(48.6% 0.167 268.5);

Tailwind

colors: {
  custom: {
    50: '#7f83d1',
    500: '#3954bc',
    950: '#000000',
  },
}

SCSS

$custom: #3954bc;
$custom-light: #7f83d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3954bc",
  "rgb": {
    "r": 57,
    "g": 84,
    "b": 188
  },
  "hsl": {
    "h": 227.634,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.48627,
    "c": 0.16651,
    "h": 268.5
  },
  "luminance": 0.10841
}

Semantic roles & 50–950 ramp

primary

#3954BC

secondary

#C9BB88

accent

#BF4BDD

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3954BC

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

Preview Lab → · Contrast checker → · Palette generator →