#3658D0#3658D0

#3658D0 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.9% C 0.189 H 267.2°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#3658D0
RGB	rgb(54, 88, 208)
HSL	hsl(227, 62%, 51%)
HSV	hsv(227, 74%, 82%)
CMYK	cmyk(74%, 57.7%, 0%, 18.4%)
CIE-LAB	lab(41.71, 29.55, -65.53)
CIE-LCH	lch(41.71, 71.88, 294.27°)
OKLab	oklab(50.86% -0.0093 -0.1891)
OKLCH	oklch(50.86% 0.189 267.2)
XYZ	xyz(16.3922, 12.3160, 61.1756)
Luminance	0.1232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3658D0 #D0AE36

analogous

#36A5D0 #3658D0 #6136D0

triadic

#3658D0 #D03658 #58D036

tetradic

#3658D0 #D036A5 #D0AE36 #36D061

square

#3658D0 #D036A5 #D0AE36 #36D061

split-complementary

#3658D0 #D06136 #A5D036

monochromatic

#1A2E71 #2642A3 #3658D0 #6881DC #99AAE7

Accessibility & contrast

On white

6.06

#3658D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#3658D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3658D0

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3658D0	#FFFFFF	#000000	##FFFFFF
##3658D0	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD4

Deuteranopia (green-blind)

#005CCE

Tritanopia (blue-blind)

#00768B

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3658d0;
/* rgb */ color: rgb(54, 88, 208);
/* oklch */ color: oklch(50.9% 0.189 267.2);

Tailwind

colors: {
  custom: {
    50: '#8286df',
    500: '#3658d0',
    950: '#000000',
  },
}

SCSS

$custom: #3658d0;
$custom-light: #8286df;
$custom-dark: #000000;

JSON

{
  "hex": "#3658d0",
  "rgb": {
    "r": 54,
    "g": 88,
    "b": 208
  },
  "hsl": {
    "h": 226.753,
    "s": 62.097,
    "l": 51.373
  },
  "oklch": {
    "l": 0.50864,
    "c": 0.18932,
    "h": 267.2
  },
  "luminance": 0.12318
}

Semantic roles & 50–950 ramp

primary

#3658D0

secondary

#D3C48F

accent

#C143E5

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3658D0

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

Preview Lab → · Contrast checker → · Palette generator →