#3D59CB#3D59CB

#3D59CB is a mid, vivid blue. Relative luminance 0.124; OKLCH L 51.0% C 0.179 H 268.7°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#3D59CB
RGB	rgb(61, 89, 203)
HSL	hsl(228, 58%, 52%)
HSV	hsv(228, 70%, 80%)
CMYK	cmyk(70%, 56.2%, 0%, 20.4%)
CIE-LAB	lab(41.92, 27.99, -62.30)
CIE-LCH	lch(41.92, 68.30, 294.19°)
OKLab	oklab(50.99% -0.004 -0.1794)
OKLCH	oklch(50.99% 0.179 268.7)
XYZ	xyz(16.2726, 12.4470, 58.0333)
Luminance	0.1245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D59CB #CBAF3D

analogous

#3DA0CB #3D59CB #683DCB

triadic

#3D59CB #CB3D59 #59CB3D

tetradic

#3D59CB #CB3DA0 #CBAF3D #3DCB68

square

#3D59CB #CB3DA0 #CBAF3D #3DCB68

split-complementary

#3D59CB #CB683D #A0CB3D

monochromatic

#1E2E70 #2B42A0 #3D59CB #6D82D8 #9EACE5

Accessibility & contrast

On white

6.02

#3D59CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#3D59CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D59CB

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D59CB	#FFFFFF	#000000	##FFFFFF
##3D59CB	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)

#006ACF

Deuteranopia (green-blind)

#005DC9

Tritanopia (blue-blind)

#007589

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3d59cb;
/* rgb */ color: rgb(61, 89, 203);
/* oklch */ color: oklch(51.0% 0.179 268.7);

Tailwind

colors: {
  custom: {
    50: '#8487dc',
    500: '#3d59cb',
    950: '#000000',
  },
}

SCSS

$custom: #3d59cb;
$custom-light: #8487dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3d59cb",
  "rgb": {
    "r": 61,
    "g": 89,
    "b": 203
  },
  "hsl": {
    "h": 228.169,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.50987,
    "c": 0.17949,
    "h": 268.7
  },
  "luminance": 0.12449
}

Semantic roles & 50–950 ramp

primary

#3D59CB

secondary

#D1C593

accent

#C347E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3D59CB

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

Preview Lab → · Contrast checker → · Palette generator →