#3955C7#3955C7

#3955C7 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.7% C 0.180 H 268.5°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#3955C7
RGB	rgb(57, 85, 199)
HSL	hsl(228, 56%, 50%)
HSV	hsv(228, 71%, 78%)
CMYK	cmyk(71.4%, 57.3%, 0%, 22%)
CIE-LAB	lab(40.39, 28.57, -62.47)
CIE-LCH	lch(40.39, 68.70, 294.58°)
OKLab	oklab(49.7% -0.0047 -0.1801)
OKLCH	oklch(49.7% 0.18 268.5)
XYZ	xyz(15.2411, 11.4888, 55.4361)
Luminance	0.1149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3955C7 #C7AB39

analogous

#399CC7 #3955C7 #6439C7

triadic

#3955C7 #C73955 #55C739

tetradic

#3955C7 #C7399C #C7AB39 #39C764

square

#3955C7 #C7399C #C7AB39 #39C764

split-complementary

#3955C7 #C76439 #9CC739

monochromatic

#1D2C68 #2B4098 #3955C7 #697ED4 #98A7E2

Accessibility & contrast

On white

6.37

#3955C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#3955C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3955C7

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3955C7	#FFFFFF	#000000	##FFFFFF
##3955C7	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CB

Deuteranopia (green-blind)

#0059C5

Tritanopia (blue-blind)

#007186

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3955c7;
/* rgb */ color: rgb(57, 85, 199);
/* oklch */ color: oklch(49.7% 0.180 268.5);

Tailwind

colors: {
  custom: {
    50: '#8284d9',
    500: '#3955c7',
    950: '#000000',
  },
}

SCSS

$custom: #3955c7;
$custom-light: #8284d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3955c7",
  "rgb": {
    "r": 57,
    "g": 85,
    "b": 199
  },
  "hsl": {
    "h": 228.169,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.49697,
    "c": 0.18017,
    "h": 268.5
  },
  "luminance": 0.1149
}

Semantic roles & 50–950 ramp

primary

#3955C7

secondary

#CEC18E

accent

#C249DF

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3955C7

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

Preview Lab → · Contrast checker → · Palette generator →