#3D55B7#3D55B7

#3D55B7 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.7% C 0.157 H 269.4°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#3D55B7
RGB	rgb(61, 85, 183)
HSL	hsl(228, 50%, 48%)
HSV	hsv(228, 67%, 72%)
CMYK	cmyk(66.7%, 53.6%, 0%, 28.2%)
CIE-LAB	lab(39.42, 23.38, -54.70)
CIE-LCH	lch(39.42, 59.49, 293.14°)
OKLab	oklab(48.65% -0.0017 -0.1572)
OKLCH	oklch(48.65% 0.157 269.4)
XYZ	xyz(13.7173, 10.9067, 46.1729)
Luminance	0.1091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D55B7 #B79F3D

analogous

#3D92B7 #3D55B7 #623DB7

triadic

#3D55B7 #B73D55 #55B73D

tetradic

#3D55B7 #B73D92 #B79F3D #3DB762

square

#3D55B7 #B73D92 #B79F3D #3DB762

split-complementary

#3D55B7 #B7623D #92B73D

monochromatic

#1E2A5B #2E4089 #3D55B7 #657ACC #93A1DB

Accessibility & contrast

On white

6.60

#3D55B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#3D55B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D55B7

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D55B7	#FFFFFF	#000000	##FFFFFF
##3D55B7	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1163BA

Deuteranopia (green-blind)

#0058B5

Tritanopia (blue-blind)

#006C7E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3d55b7;
/* rgb */ color: rgb(61, 85, 183);
/* oklch */ color: oklch(48.7% 0.157 269.4);

Tailwind

colors: {
  custom: {
    50: '#8084cd',
    500: '#3d55b7',
    950: '#000000',
  },
}

SCSS

$custom: #3d55b7;
$custom-light: #8084cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3d55b7",
  "rgb": {
    "r": 61,
    "g": 85,
    "b": 183
  },
  "hsl": {
    "h": 228.197,
    "s": 50,
    "l": 47.843
  },
  "oklch": {
    "l": 0.48654,
    "c": 0.15717,
    "h": 269.4
  },
  "luminance": 0.10908
}

Semantic roles & 50–950 ramp

primary

#3D55B7

secondary

#C6BA89

accent

#BE4EDA

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3D55B7

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

Preview Lab → · Contrast checker → · Palette generator →