#3B59CF#3B59CF

#3B59CF is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.2% C 0.185 H 268.3°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#3B59CF
RGB	rgb(59, 89, 207)
HSL	hsl(228, 61%, 52%)
HSV	hsv(228, 71%, 81%)
CMYK	cmyk(71.5%, 57%, 0%, 18.8%)
CIE-LAB	lab(42.12, 29.16, -64.28)
CIE-LCH	lch(42.12, 70.59, 294.40°)
OKLab	oklab(51.21% -0.0056 -0.1853)
OKLCH	oklch(51.21% 0.185 268.3)
XYZ	xyz(16.6346, 12.5778, 60.5705)
Luminance	0.1258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B59CF #CFB13B

analogous

#3BA3CF #3B59CF #673BCF

triadic

#3B59CF #CF3B59 #59CF3B

tetradic

#3B59CF #CF3BA3 #CFB13B #3BCF67

square

#3B59CF #CF3BA3 #CFB13B #3BCF67

split-complementary

#3B59CF #CF673B #A3CF3B

monochromatic

#1C2E73 #2841A5 #3B59CF #6C83DB #9DACE7

Accessibility & contrast

On white

5.97

#3B59CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#3B59CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B59CF

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B59CF	#FFFFFF	#000000	##FFFFFF
##3B59CF	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD3

Deuteranopia (green-blind)

#005DCD

Tritanopia (blue-blind)

#00768B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3b59cf;
/* rgb */ color: rgb(59, 89, 207);
/* oklch */ color: oklch(51.2% 0.185 268.3);

Tailwind

colors: {
  custom: {
    50: '#8487df',
    500: '#3b59cf',
    950: '#000000',
  },
}

SCSS

$custom: #3b59cf;
$custom-light: #8487df;
$custom-dark: #000000;

JSON

{
  "hex": "#3b59cf",
  "rgb": {
    "r": 59,
    "g": 89,
    "b": 207
  },
  "hsl": {
    "h": 227.838,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.51206,
    "c": 0.18541,
    "h": 268.3
  },
  "luminance": 0.1258
}

Semantic roles & 50–950 ramp

primary

#3B59CF

secondary

#D3C693

accent

#C344E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3B59CF

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

Preview Lab → · Contrast checker → · Palette generator →