#3954BF#3954BF

#3954BF is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.9% C 0.171 H 268.6°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3954BF
RGB	rgb(57, 84, 191)
HSL	hsl(228, 54%, 49%)
HSV	hsv(228, 70%, 75%)
CMYK	cmyk(70.2%, 56%, 0%, 25.1%)
CIE-LAB	lab(39.53, 26.31, -59.22)
CIE-LCH	lch(39.53, 64.80, 293.96°)
OKLab	oklab(48.86% -0.0042 -0.1705)
OKLCH	oklch(48.86% 0.171 268.6)
XYZ	xyz(14.2584, 10.9707, 50.6462)
Luminance	0.1097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3954BF #BFA439

analogous

#3997BF #3954BF #6139BF

triadic

#3954BF #BF3954 #54BF39

tetradic

#3954BF #BF3997 #BFA439 #39BF61

square

#3954BF #BF3997 #BFA439 #39BF61

split-complementary

#3954BF #BF6139 #97BF39

monochromatic

#1D2B61 #2B3F90 #3954BF #647AD1 #93A3DF

Accessibility & contrast

On white

6.57

#3954BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3954BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3954BF

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3954BF	#FFFFFF	#000000	##FFFFFF
##3954BF	1.00	6.57	3.19	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C3

Deuteranopia (green-blind)

#0057BD

Tritanopia (blue-blind)

#006E81

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3954bf;
/* rgb */ color: rgb(57, 84, 191);
/* oklch */ color: oklch(48.9% 0.171 268.6);

Tailwind

colors: {
  custom: {
    50: '#8083d3',
    500: '#3954bf',
    950: '#000000',
  },
}

SCSS

$custom: #3954bf;
$custom-light: #8083d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3954bf",
  "rgb": {
    "r": 57,
    "g": 84,
    "b": 191
  },
  "hsl": {
    "h": 227.91,
    "s": 54.032,
    "l": 48.627
  },
  "oklch": {
    "l": 0.48863,
    "c": 0.1706,
    "h": 268.6
  },
  "luminance": 0.10972
}

Semantic roles & 50–950 ramp

primary

#3954BF

secondary

#CABD8A

accent

#C04ADD

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3954BF

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

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