#3B56CB#3B56CB

#3B56CB is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.3% C 0.184 H 268.9°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#3B56CB
RGB	rgb(59, 86, 203)
HSL	hsl(229, 58%, 51%)
HSV	hsv(229, 71%, 80%)
CMYK	cmyk(70.9%, 57.6%, 0%, 20.4%)
CIE-LAB	lab(41.05, 29.64, -63.71)
CIE-LCH	lch(41.05, 70.27, 294.95°)
OKLab	oklab(50.31% -0.0035 -0.1837)
OKLCH	oklch(50.31% 0.184 268.9)
XYZ	xyz(15.9072, 11.8956, 57.9461)
Luminance	0.1190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B56CB #CBB03B

analogous

#3B9ECB #3B56CB #683BCB

triadic

#3B56CB #CB3B56 #56CB3B

tetradic

#3B56CB #CB3B9E #CBB03B #3BCB68

square

#3B56CB #CB3B9E #CBB03B #3BCB68

split-complementary

#3B56CB #CB683B #9ECB3B

monochromatic

#1D2C6E #2A409F #3B56CB #6B80D8 #9CA9E5

Accessibility & contrast

On white

6.21

#3B56CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#3B56CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B56CB

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B56CB	#FFFFFF	#000000	##FFFFFF
##3B56CB	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CF

Deuteranopia (green-blind)

#005AC9

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3b56cb;
/* rgb */ color: rgb(59, 86, 203);
/* oklch */ color: oklch(50.3% 0.184 268.9);

Tailwind

colors: {
  custom: {
    50: '#8385dc',
    500: '#3b56cb',
    950: '#000000',
  },
}

SCSS

$custom: #3b56cb;
$custom-light: #8385dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b56cb",
  "rgb": {
    "r": 59,
    "g": 86,
    "b": 203
  },
  "hsl": {
    "h": 228.75,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.5031,
    "c": 0.18373,
    "h": 268.9
  },
  "luminance": 0.11897
}

Semantic roles & 50–950 ramp

primary

#3B56CB

secondary

#D1C591

accent

#C447E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3B56CB

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

Preview Lab → · Contrast checker → · Palette generator →