#3658BE#3658BE

#3658BE is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.4% C 0.165 H 266.4°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#3658BE
RGB	rgb(54, 88, 190)
HSL	hsl(225, 56%, 48%)
HSV	hsv(225, 72%, 75%)
CMYK	cmyk(71.6%, 53.7%, 0%, 25.5%)
CIE-LAB	lab(40.38, 22.94, -57.27)
CIE-LCH	lch(40.38, 61.69, 291.83°)
OKLab	oklab(49.44% -0.0103 -0.1648)
OKLCH	oklch(49.44% 0.165 266.4)
XYZ	xyz(14.3021, 11.4799, 50.1673)
Luminance	0.1148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3658BE #BE9C36

analogous

#369CBE #3658BE #5836BE

triadic

#3658BE #BE3658 #58BE36

tetradic

#3658BE #BE369C #BE9C36 #36BE58

square

#3658BE #BE369C #BE9C36 #36BE58

split-complementary

#3658BE #BE5836 #9CBE36

monochromatic

#1B2C5F #28428E #3658BE #607CD2 #8FA3DF

Accessibility & contrast

On white

6.37

#3658BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#3658BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3658BE

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3658BE	#FFFFFF	#000000	##FFFFFF
##3658BE	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0966C2

Deuteranopia (green-blind)

#0059BC

Tritanopia (blue-blind)

#007182

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3658be;
/* rgb */ color: rgb(54, 88, 190);
/* oklch */ color: oklch(49.4% 0.165 266.4);

Tailwind

colors: {
  custom: {
    50: '#7e86d2',
    500: '#3658be',
    950: '#000000',
  },
}

SCSS

$custom: #3658be;
$custom-light: #7e86d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3658be",
  "rgb": {
    "r": 54,
    "g": 88,
    "b": 190
  },
  "hsl": {
    "h": 225,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.49438,
    "c": 0.16514,
    "h": 266.4
  },
  "luminance": 0.11481
}

Semantic roles & 50–950 ramp

primary

#3658BE

secondary

#CAB986

accent

#B949DF

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3658BE

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

Preview Lab → · Contrast checker → · Palette generator →