#3D53BB#3D53BB

#3D53BB is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.6% C 0.165 H 270.1°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#3D53BB
RGB	rgb(61, 83, 187)
HSL	hsl(230, 51%, 49%)
HSV	hsv(230, 67%, 73%)
CMYK	cmyk(67.4%, 55.6%, 0%, 26.7%)
CIE-LAB	lab(39.18, 26.11, -57.44)
CIE-LCH	lch(39.18, 63.09, 294.44°)
OKLab	oklab(48.56% 0.0003 -0.1652)
OKLCH	oklch(48.56% 0.165 270.1)
XYZ	xyz(13.9843, 10.7652, 48.3450)
Luminance	0.1077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D53BB #BBA53D

analogous

#3D92BB #3D53BB #663DBB

triadic

#3D53BB #BB3D53 #53BB3D

tetradic

#3D53BB #BB3D92 #BBA53D #3DBB66

square

#3D53BB #BB3D92 #BBA53D #3DBB66

split-complementary

#3D53BB #BB663D #92BB3D

monochromatic

#1F2A5F #2E3F8D #3D53BB #6879CE #96A2DD

Accessibility & contrast

On white

6.66

#3D53BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3D53BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D53BB

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D53BB	#FFFFFF	#000000	##FFFFFF
##3D53BB	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0057B9

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3d53bb;
/* rgb */ color: rgb(61, 83, 187);
/* oklch */ color: oklch(48.6% 0.165 270.1);

Tailwind

colors: {
  custom: {
    50: '#8183d0',
    500: '#3d53bb',
    950: '#000000',
  },
}

SCSS

$custom: #3d53bb;
$custom-light: #8183d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d53bb",
  "rgb": {
    "r": 61,
    "g": 83,
    "b": 187
  },
  "hsl": {
    "h": 229.524,
    "s": 50.806,
    "l": 48.627
  },
  "oklch": {
    "l": 0.48564,
    "c": 0.16524,
    "h": 270.1
  },
  "luminance": 0.10766
}

Semantic roles & 50–950 ramp

primary

#3D53BB

secondary

#C8BE8C

accent

#C24EDA

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #3D53BB

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

Preview Lab → · Contrast checker → · Palette generator →