#3954CC#3954CC

#3954CC is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.9% C 0.188 H 268.8°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#3954CC
RGB	rgb(57, 84, 204)
HSL	hsl(229, 59%, 51%)
HSV	hsv(229, 72%, 80%)
CMYK	cmyk(72.1%, 58.8%, 0%, 20%)
CIE-LAB	lab(40.52, 31.02, -65.16)
CIE-LCH	lch(40.52, 72.16, 295.46°)
OKLab	oklab(49.92% -0.0038 -0.188)
OKLCH	oklch(49.92% 0.188 268.8)
XYZ	xyz(15.7530, 11.5685, 58.5178)
Luminance	0.1157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3954CC #CCB139

analogous

#399DCC #3954CC #6739CC

triadic

#3954CC #CC3954 #54CC39

tetradic

#3954CC #CC399D #CCB139 #39CC67

square

#3954CC #CC399D #CCB139 #39CC67

split-complementary

#3954CC #CC6739 #9DCC39

monochromatic

#1C2B6E #293F9F #3954CC #6A7ED9 #9AA8E5

Accessibility & contrast

On white

6.34

#3954CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#3954CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3954CC

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3954CC	#FFFFFF	#000000	##FFFFFF
##3954CC	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D0

Deuteranopia (green-blind)

#0059CA

Tritanopia (blue-blind)

#007288

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3954cc;
/* rgb */ color: rgb(57, 84, 204);
/* oklch */ color: oklch(49.9% 0.188 268.8);

Tailwind

colors: {
  custom: {
    50: '#8383dc',
    500: '#3954cc',
    950: '#000000',
  },
}

SCSS

$custom: #3954cc;
$custom-light: #8383dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3954cc",
  "rgb": {
    "r": 57,
    "g": 84,
    "b": 204
  },
  "hsl": {
    "h": 228.98,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.49915,
    "c": 0.18804,
    "h": 268.8
  },
  "luminance": 0.1157
}

Semantic roles & 50–950 ramp

primary

#3954CC

secondary

#D1C590

accent

#C546E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3954CC

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

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