#3B59CC#3B59CC

#3B59CC is a mid, vivid blue. Relative luminance 0.124; OKLCH L 51.0% C 0.181 H 268.2°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#3B59CC
RGB	rgb(59, 89, 204)
HSL	hsl(228, 59%, 52%)
HSV	hsv(228, 71%, 80%)
CMYK	cmyk(71.1%, 56.4%, 0%, 20%)
CIE-LAB	lab(41.90, 28.08, -62.92)
CIE-LCH	lch(41.90, 68.90, 294.05°)
OKLab	oklab(50.97% -0.0058 -0.1813)
OKLCH	oklch(50.97% 0.181 268.2)
XYZ	xyz(16.2713, 12.4325, 58.6572)
Luminance	0.1243 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B59CC #CCAE3B

analogous

#3BA2CC #3B59CC #663BCC

triadic

#3B59CC #CC3B59 #59CC3B

tetradic

#3B59CC #CC3BA2 #CCAE3B #3BCC66

square

#3B59CC #CC3BA2 #CCAE3B #3BCC66

split-complementary

#3B59CC #CC663B #A2CC3B

monochromatic

#1D2E70 #2A42A0 #3B59CC #6C82D9 #9CABE5

Accessibility & contrast

On white

6.02

#3B59CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#3B59CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B59CC

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B59CC	#FFFFFF	#000000	##FFFFFF
##3B59CC	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	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: #3b59cc;
/* rgb */ color: rgb(59, 89, 204);
/* oklch */ color: oklch(51.0% 0.181 268.2);

Tailwind

colors: {
  custom: {
    50: '#8387dc',
    500: '#3b59cc',
    950: '#000000',
  },
}

SCSS

$custom: #3b59cc;
$custom-light: #8387dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b59cc",
  "rgb": {
    "r": 59,
    "g": 89,
    "b": 204
  },
  "hsl": {
    "h": 227.586,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.50967,
    "c": 0.1814,
    "h": 268.2
  },
  "luminance": 0.12434
}

Semantic roles & 50–950 ramp

primary

#3B59CC

secondary

#D1C492

accent

#C246E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3B59CC

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

Preview Lab → · Contrast checker → · Palette generator →