#3D55AB#3D55AB

#3D55AB is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.8% C 0.140 H 268.9°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#3D55AB
RGB	rgb(61, 85, 171)
HSL	hsl(227, 47%, 45%)
HSV	hsv(227, 64%, 67%)
CMYK	cmyk(64.3%, 50.3%, 0%, 32.9%)
CIE-LAB	lab(38.60, 19.07, -48.95)
CIE-LCH	lch(38.60, 52.53, 291.28°)
OKLab	oklab(47.77% -0.0028 -0.1402)
OKLCH	oklch(47.77% 0.14 268.9)
XYZ	xyz(12.5212, 10.4283, 39.8732)
Luminance	0.1043 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D55AB #AB933D

analogous

#3D8CAB #3D55AB #5C3DAB

triadic

#3D55AB #AB3D55 #55AB3D

tetradic

#3D55AB #AB3D8C #AB933D #3DAB5C

square

#3D55AB #AB3D8C #AB933D #3DAB5C

split-complementary

#3D55AB #AB5C3D #8CAB3D

monochromatic

#1D2851 #2D3F7E #3D55AB #5F76C6 #8C9CD6

Accessibility & contrast

On white

6.81

#3D55AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#3D55AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D55AB

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D55AB	#FFFFFF	#000000	##FFFFFF
##3D55AB	1.00	6.81	3.09	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2660AE

Deuteranopia (green-blind)

#0856A9

Tritanopia (blue-blind)

#006978

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3d55ab;
/* rgb */ color: rgb(61, 85, 171);
/* oklch */ color: oklch(47.8% 0.140 268.9);

Tailwind

colors: {
  custom: {
    50: '#7e84c5',
    500: '#3d55ab',
    950: '#000000',
  },
}

SCSS

$custom: #3d55ab;
$custom-light: #7e84c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3d55ab",
  "rgb": {
    "r": 61,
    "g": 85,
    "b": 171
  },
  "hsl": {
    "h": 226.909,
    "s": 47.414,
    "l": 45.49
  },
  "oklch": {
    "l": 0.47769,
    "c": 0.14027,
    "h": 268.9
  },
  "luminance": 0.10429
}

Semantic roles & 50–950 ramp

primary

#3D55AB

secondary

#C1B383

accent

#BA51D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3D55AB

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

Preview Lab → · Contrast checker → · Palette generator →