#3955C5#3955C5

#3955C5 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.5% C 0.177 H 268.5°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#3955C5
RGB	rgb(57, 85, 197)
HSL	hsl(228, 55%, 50%)
HSV	hsv(228, 71%, 77%)
CMYK	cmyk(71.1%, 56.9%, 0%, 22.7%)
CIE-LAB	lab(40.24, 27.85, -61.56)
CIE-LCH	lch(40.24, 67.57, 294.34°)
OKLab	oklab(49.54% -0.0048 -0.1774)
OKLCH	oklch(49.54% 0.177 268.5)
XYZ	xyz(15.0104, 11.3965, 54.2212)
Luminance	0.1140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3955C5 #C5A939

analogous

#399BC5 #3955C5 #6339C5

triadic

#3955C5 #C53955 #55C539

tetradic

#3955C5 #C5399B #C5A939 #39C563

square

#3955C5 #C5399B #C5A939 #39C563

split-complementary

#3955C5 #C56339 #9BC539

monochromatic

#1E2C66 #2B4196 #3955C5 #687DD3 #97A6E1

Accessibility & contrast

On white

6.40

#3955C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#3955C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3955C5

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3955C5	#FFFFFF	#000000	##FFFFFF
##3955C5	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066C9

Deuteranopia (green-blind)

#0059C3

Tritanopia (blue-blind)

#007185

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3955c5;
/* rgb */ color: rgb(57, 85, 197);
/* oklch */ color: oklch(49.5% 0.177 268.5);

Tailwind

colors: {
  custom: {
    50: '#8184d7',
    500: '#3955c5',
    950: '#000000',
  },
}

SCSS

$custom: #3955c5;
$custom-light: #8184d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3955c5",
  "rgb": {
    "r": 57,
    "g": 85,
    "b": 197
  },
  "hsl": {
    "h": 228,
    "s": 55.118,
    "l": 49.804
  },
  "oklch": {
    "l": 0.49536,
    "c": 0.17748,
    "h": 268.5
  },
  "luminance": 0.11398
}

Semantic roles & 50–950 ramp

primary

#3955C5

secondary

#CDC08D

accent

#C149DE

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3955C5

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

Preview Lab → · Contrast checker → · Palette generator →