#3D55BB#3D55BB

#3D55BB is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.0% C 0.163 H 269.5°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#3D55BB
RGB	rgb(61, 85, 187)
HSL	hsl(229, 51%, 49%)
HSV	hsv(229, 67%, 73%)
CMYK	cmyk(67.4%, 54.5%, 0%, 26.7%)
CIE-LAB	lab(39.71, 24.81, -56.59)
CIE-LCH	lch(39.71, 61.79, 293.68°)
OKLab	oklab(48.96% -0.0014 -0.1627)
OKLCH	oklch(48.96% 0.163 269.5)
XYZ	xyz(14.1395, 11.0756, 48.3967)
Luminance	0.1108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D55BB #BBA33D

analogous

#3D94BB #3D55BB #643DBB

triadic

#3D55BB #BB3D55 #55BB3D

tetradic

#3D55BB #BB3D94 #BBA33D #3DBB64

square

#3D55BB #BB3D94 #BBA33D #3DBB64

split-complementary

#3D55BB #BB643D #94BB3D

monochromatic

#1F2B5F #2E408D #3D55BB #687BCE #96A3DD

Accessibility & contrast

On white

6.53

#3D55BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#3D55BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D55BB

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D55BB	#FFFFFF	#000000	##FFFFFF
##3D55BB	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0363BF

Deuteranopia (green-blind)

#0058B9

Tritanopia (blue-blind)

#006D80

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3d55bb;
/* rgb */ color: rgb(61, 85, 187);
/* oklch */ color: oklch(49.0% 0.163 269.5);

Tailwind

colors: {
  custom: {
    50: '#8184d0',
    500: '#3d55bb',
    950: '#000000',
  },
}

SCSS

$custom: #3d55bb;
$custom-light: #8184d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d55bb",
  "rgb": {
    "r": 61,
    "g": 85,
    "b": 187
  },
  "hsl": {
    "h": 228.571,
    "s": 50.806,
    "l": 48.627
  },
  "oklch": {
    "l": 0.48959,
    "c": 0.16271,
    "h": 269.5
  },
  "luminance": 0.11077
}

Semantic roles & 50–950 ramp

primary

#3D55BB

secondary

#C8BD8C

accent

#BF4EDA

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3D55BB

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

Preview Lab → · Contrast checker → · Palette generator →