#3658B2#3658B2

#3658B2 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.5% C 0.149 H 265.6°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3658B2
RGB	rgb(54, 88, 178)
HSL	hsl(224, 53%, 45%)
HSV	hsv(224, 70%, 70%)
CMYK	cmyk(69.7%, 50.6%, 0%, 30.2%)
CIE-LAB	lab(39.54, 18.50, -51.59)
CIE-LCH	lch(39.54, 54.81, 289.73°)
OKLab	oklab(48.54% -0.0114 -0.1481)
OKLCH	oklch(48.54% 0.149 265.6)
XYZ	xyz(13.0441, 10.9768, 43.5421)
Luminance	0.1098 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3658B2 #B29036

analogous

#3696B2 #3658B2 #5236B2

triadic

#3658B2 #B23658 #58B236

tetradic

#3658B2 #B23696 #B29036 #36B252

square

#3658B2 #B23696 #B29036 #36B252

split-complementary

#3658B2 #B25236 #96B236

monochromatic

#1A2A54 #284183 #3658B2 #5978CD #889EDB

Accessibility & contrast

On white

6.57

#3658B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3658B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3658B2

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3658B2	#FFFFFF	#000000	##FFFFFF
##3658B2	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2363B5

Deuteranopia (green-blind)

#0058B0

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3658b2;
/* rgb */ color: rgb(54, 88, 178);
/* oklch */ color: oklch(48.5% 0.149 265.6);

Tailwind

colors: {
  custom: {
    50: '#7c86ca',
    500: '#3658b2',
    950: '#000000',
  },
}

SCSS

$custom: #3658b2;
$custom-light: #7c86ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3658b2",
  "rgb": {
    "r": 54,
    "g": 88,
    "b": 178
  },
  "hsl": {
    "h": 223.548,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.48538,
    "c": 0.14854,
    "h": 265.6
  },
  "luminance": 0.10978
}

Semantic roles & 50–950 ramp

primary

#3658B2

secondary

#C5B27F

accent

#B54BDD

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3658B2

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

Preview Lab → · Contrast checker → · Palette generator →