#3D579A#3D579A

#3D579A is a mid, moderate blue. Relative luminance 0.101; OKLCH L 47.0% C 0.113 H 266.2°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#3D579A
RGB	rgb(61, 87, 154)
HSL	hsl(223, 43%, 42%)
HSV	hsv(223, 60%, 60%)
CMYK	cmyk(60.4%, 43.5%, 0%, 39.6%)
CIE-LAB	lab(38.09, 11.70, -39.62)
CIE-LCH	lch(38.09, 41.31, 286.45°)
OKLab	oklab(47.04% -0.0075 -0.1128)
OKLCH	oklch(47.04% 0.113 266.2)
XYZ	xyz(11.1634, 10.1407, 31.9346)
Luminance	0.1014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D579A #9A803D

analogous

#3D869A #3D579A #523D9A

triadic

#3D579A #9A3D57 #579A3D

tetradic

#3D579A #9A3D86 #9A803D #3D9A52

square

#3D579A #9A3D86 #9A803D #3D9A52

split-complementary

#3D579A #9A523D #869A3D

monochromatic

#1A2542 #2C3E6E #3D579A #5874BD #8398CE

Accessibility & contrast

On white

6.93

#3D579A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3D579A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D579A

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D579A	#FFFFFF	#000000	##FFFFFF
##3D579A	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395E9D

Deuteranopia (green-blind)

#2C5699

Tritanopia (blue-blind)

#006671

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3d579a;
/* rgb */ color: rgb(61, 87, 154);
/* oklch */ color: oklch(47.0% 0.113 266.2);

Tailwind

colors: {
  custom: {
    50: '#7b86b8',
    500: '#3d579a',
    950: '#000000',
  },
}

SCSS

$custom: #3d579a;
$custom-light: #7b86b8;
$custom-dark: #000000;

JSON

{
  "hex": "#3d579a",
  "rgb": {
    "r": 61,
    "g": 87,
    "b": 154
  },
  "hsl": {
    "h": 223.226,
    "s": 43.256,
    "l": 42.157
  },
  "oklch": {
    "l": 0.47038,
    "c": 0.11303,
    "h": 266.2
  },
  "luminance": 0.10142
}

Semantic roles & 50–950 ramp

primary

#3D579A

secondary

#B8A77B

accent

#B055D3

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #3D579A

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

Preview Lab → · Contrast checker → · Palette generator →