#3658AD#3658AD

#3658AD is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.2% C 0.142 H 265.1°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#3658AD
RGB	rgb(54, 88, 173)
HSL	hsl(223, 52%, 45%)
HSV	hsv(223, 69%, 68%)
CMYK	cmyk(68.8%, 49.1%, 0%, 32.2%)
CIE-LAB	lab(39.21, 16.66, -49.18)
CIE-LCH	lch(39.21, 51.92, 288.71°)
OKLab	oklab(48.18% -0.0121 -0.141)
OKLCH	oklch(48.18% 0.142 265.1)
XYZ	xyz(12.5512, 10.7796, 40.9463)
Luminance	0.1078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3658AD #AD8B36

analogous

#3694AD #3658AD #5036AD

triadic

#3658AD #AD3658 #58AD36

tetradic

#3658AD #AD3694 #AD8B36 #36AD50

square

#3658AD #AD3694 #AD8B36 #36AD50

split-complementary

#3658AD #AD5036 #94AD36

monochromatic

#192950 #27407E #3658AD #5677CA #859DD9

Accessibility & contrast

On white

6.65

#3658AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#3658AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3658AD

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3658AD	#FFFFFF	#000000	##FFFFFF
##3658AD	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A62B0

Deuteranopia (green-blind)

#0757AB

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3658ad;
/* rgb */ color: rgb(54, 88, 173);
/* oklch */ color: oklch(48.2% 0.142 265.1);

Tailwind

colors: {
  custom: {
    50: '#7b86c6',
    500: '#3658ad',
    950: '#000000',
  },
}

SCSS

$custom: #3658ad;
$custom-light: #7b86c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3658ad",
  "rgb": {
    "r": 54,
    "g": 88,
    "b": 173
  },
  "hsl": {
    "h": 222.857,
    "s": 52.423,
    "l": 44.51
  },
  "oklch": {
    "l": 0.48176,
    "c": 0.14152,
    "h": 265.1
  },
  "luminance": 0.10781
}

Semantic roles & 50–950 ramp

primary

#3658AD

secondary

#C2AE7C

accent

#B34CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3658AD

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

Preview Lab → · Contrast checker → · Palette generator →