#3D63BB#3D63BB

#3D63BB is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.8% C 0.145 H 264.4°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#3D63BB
RGB	rgb(61, 99, 187)
HSL	hsl(222, 51%, 49%)
HSV	hsv(222, 67%, 73%)
CMYK	cmyk(67.4%, 47.1%, 0%, 26.7%)
CIE-LAB	lab(43.51, 15.79, -50.45)
CIE-LCH	lch(43.51, 52.87, 287.38°)
OKLab	oklab(51.85% -0.0143 -0.1444)
OKLCH	oklch(51.85% 0.145 264.4)
XYZ	xyz(15.3528, 13.5021, 48.8011)
Luminance	0.1350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D63BB #BB953D

analogous

#3DA2BB #3D63BB #563DBB

triadic

#3D63BB #BB3D63 #63BB3D

tetradic

#3D63BB #BB3DA2 #BB953D #3DBB56

square

#3D63BB #BB3DA2 #BB953D #3DBB56

split-complementary

#3D63BB #BB563D #A2BB3D

monochromatic

#1F325F #2E4B8D #3D63BB #6886CE #96ABDD

Accessibility & contrast

On white

5.67

#3D63BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#3D63BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D63BB

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D63BB	#FFFFFF	#000000	##FFFFFF
##3D63BB	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#366DBE

Deuteranopia (green-blind)

#1B61B9

Tritanopia (blue-blind)

#007786

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3d63bb;
/* rgb */ color: rgb(61, 99, 187);
/* oklch */ color: oklch(51.8% 0.145 264.4);

Tailwind

colors: {
  custom: {
    50: '#808ed0',
    500: '#3d63bb',
    950: '#000000',
  },
}

SCSS

$custom: #3d63bb;
$custom-light: #808ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d63bb",
  "rgb": {
    "r": 61,
    "g": 99,
    "b": 187
  },
  "hsl": {
    "h": 221.905,
    "s": 50.806,
    "l": 48.627
  },
  "oklch": {
    "l": 0.51845,
    "c": 0.14515,
    "h": 264.4
  },
  "luminance": 0.13504
}

Semantic roles & 50–950 ramp

primary

#3D63BB

secondary

#C8B68C

accent

#B04EDA

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3D63BB

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

Preview Lab → · Contrast checker → · Palette generator →