#3D51BD#3D51BD

#3D51BD is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.3% C 0.170 H 270.7°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3D51BD
RGB	rgb(61, 81, 189)
HSL	hsl(231, 51%, 49%)
HSV	hsv(231, 68%, 74%)
CMYK	cmyk(67.7%, 57.1%, 0%, 25.9%)
CIE-LAB	lab(38.81, 28.11, -59.21)
CIE-LCH	lch(38.81, 65.54, 295.40°)
OKLab	oklab(48.33% 0.0021 -0.1705)
OKLCH	oklch(48.33% 0.17 270.7)
XYZ	xyz(14.0491, 10.5498, 49.4302)
Luminance	0.1055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D51BD #BDA93D

analogous

#3D91BD #3D51BD #693DBD

triadic

#3D51BD #BD3D51 #51BD3D

tetradic

#3D51BD #BD3D91 #BDA93D #3DBD69

square

#3D51BD #BD3D91 #BDA93D #3DBD69

split-complementary

#3D51BD #BD693D #91BD3D

monochromatic

#1F2960 #2E3D8F #3D51BD #6979CE #97A2DD

Accessibility & contrast

On white

6.75

#3D51BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3D51BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D51BD

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D51BD	#FFFFFF	#000000	##FFFFFF
##3D51BD	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C1

Deuteranopia (green-blind)

#0056BB

Tritanopia (blue-blind)

#006B7F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3d51bd;
/* rgb */ color: rgb(61, 81, 189);
/* oklch */ color: oklch(48.3% 0.170 270.7);

Tailwind

colors: {
  custom: {
    50: '#8281d2',
    500: '#3d51bd',
    950: '#000000',
  },
}

SCSS

$custom: #3d51bd;
$custom-light: #8281d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3d51bd",
  "rgb": {
    "r": 61,
    "g": 81,
    "b": 189
  },
  "hsl": {
    "h": 230.625,
    "s": 51.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.48333,
    "c": 0.17048,
    "h": 270.7
  },
  "luminance": 0.10551
}

Semantic roles & 50–950 ramp

primary

#3D51BD

secondary

#C9C08D

accent

#C54DDB

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3D51BD

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

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