#3955CC#3955CC

#3955CC is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.1% C 0.187 H 268.6°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#3955CC
RGB	rgb(57, 85, 204)
HSL	hsl(229, 59%, 51%)
HSV	hsv(229, 72%, 80%)
CMYK	cmyk(72.1%, 58.3%, 0%, 20%)
CIE-LAB	lab(40.78, 30.38, -64.74)
CIE-LCH	lch(40.78, 71.52, 295.14°)
OKLab	oklab(50.1% -0.0046 -0.1868)
OKLCH	oklch(50.1% 0.187 268.6)
XYZ	xyz(15.8312, 11.7248, 58.5438)
Luminance	0.1173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3955CC #CCB039

analogous

#399FCC #3955CC #6639CC

triadic

#3955CC #CC3955 #55CC39

tetradic

#3955CC #CC399F #CCB039 #39CC66

square

#3955CC #CC399F #CCB039 #39CC66

split-complementary

#3955CC #CC6639 #9FCC39

monochromatic

#1C2C6E #293F9F #3955CC #6A7FD9 #9AA9E5

Accessibility & contrast

On white

6.28

#3955CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#3955CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3955CC

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3955CC	#FFFFFF	#000000	##FFFFFF
##3955CC	1.00	6.28	3.35	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D0

Deuteranopia (green-blind)

#005ACA

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3955cc;
/* rgb */ color: rgb(57, 85, 204);
/* oklch */ color: oklch(50.1% 0.187 268.6);

Tailwind

colors: {
  custom: {
    50: '#8384dc',
    500: '#3955cc',
    950: '#000000',
  },
}

SCSS

$custom: #3955cc;
$custom-light: #8384dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3955cc",
  "rgb": {
    "r": 57,
    "g": 85,
    "b": 204
  },
  "hsl": {
    "h": 228.571,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.50103,
    "c": 0.18683,
    "h": 268.6
  },
  "luminance": 0.11726
}

Semantic roles & 50–950 ramp

primary

#3955CC

secondary

#D1C590

accent

#C446E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3955CC

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

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