#3959CC#3959CC

#3959CC is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.9% C 0.182 H 267.6°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#3959CC
RGB	rgb(57, 89, 204)
HSL	hsl(227, 59%, 51%)
HSV	hsv(227, 72%, 80%)
CMYK	cmyk(72.1%, 56.4%, 0%, 20%)
CIE-LAB	lab(41.80, 27.82, -63.07)
CIE-LCH	lch(41.80, 68.93, 293.80°)
OKLab	oklab(50.87% -0.0076 -0.1818)
OKLCH	oklch(50.87% 0.182 267.6)
XYZ	xyz(16.1550, 12.3726, 58.6518)
Luminance	0.1237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3959CC #CCAC39

analogous

#39A2CC #3959CC #6239CC

triadic

#3959CC #CC3959 #59CC39

tetradic

#3959CC #CC39A2 #CCAC39 #39CC62

square

#3959CC #CC39A2 #CCAC39 #39CC62

split-complementary

#3959CC #CC6239 #A2CC39

monochromatic

#1C2E6E #29439F #3959CC #6A82D9 #9AABE5

Accessibility & contrast

On white

6.04

#3959CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#3959CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3959CC

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3959CC	#FFFFFF	#000000	##FFFFFF
##3959CC	1.00	6.04	3.47	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD0

Deuteranopia (green-blind)

#005CCA

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3959cc;
/* rgb */ color: rgb(57, 89, 204);
/* oklch */ color: oklch(50.9% 0.182 267.6);

Tailwind

colors: {
  custom: {
    50: '#8387dc',
    500: '#3959cc',
    950: '#000000',
  },
}

SCSS

$custom: #3959cc;
$custom-light: #8387dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3959cc",
  "rgb": {
    "r": 57,
    "g": 89,
    "b": 204
  },
  "hsl": {
    "h": 226.939,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.50871,
    "c": 0.18197,
    "h": 267.6
  },
  "luminance": 0.12374
}

Semantic roles & 50–950 ramp

primary

#3959CC

secondary

#D1C390

accent

#C046E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3959CC

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

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