#3658C9#3658C9

#3658C9 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.3% C 0.180 H 267.0°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#3658C9
RGB	rgb(54, 88, 201)
HSL	hsl(226, 58%, 50%)
HSV	hsv(226, 73%, 79%)
CMYK	cmyk(73.1%, 56.2%, 0%, 21.2%)
CIE-LAB	lab(41.18, 26.99, -62.35)
CIE-LCH	lch(41.18, 67.94, 293.40°)
OKLab	oklab(50.3% -0.0096 -0.1798)
OKLCH	oklch(50.3% 0.18 267)
XYZ	xyz(15.5500, 11.9791, 56.7397)
Luminance	0.1198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3658C9 #C9A736

analogous

#36A2C9 #3658C9 #5D36C9

triadic

#3658C9 #C93658 #58C936

tetradic

#3658C9 #C936A2 #C9A736 #36C95D

square

#3658C9 #C936A2 #C9A736 #36C95D

split-complementary

#3658C9 #C95D36 #A2C936

monochromatic

#1C2E69 #294399 #3658C9 #6680D6 #96A8E3

Accessibility & contrast

On white

6.18

#3658C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#3658C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3658C9

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3658C9	#FFFFFF	#000000	##FFFFFF
##3658C9	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CD

Deuteranopia (green-blind)

#005BC7

Tritanopia (blue-blind)

#007488

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3658c9;
/* rgb */ color: rgb(54, 88, 201);
/* oklch */ color: oklch(50.3% 0.180 267.0);

Tailwind

colors: {
  custom: {
    50: '#8186da',
    500: '#3658c9',
    950: '#000000',
  },
}

SCSS

$custom: #3658c9;
$custom-light: #8186da;
$custom-dark: #000000;

JSON

{
  "hex": "#3658c9",
  "rgb": {
    "r": 54,
    "g": 88,
    "b": 201
  },
  "hsl": {
    "h": 226.122,
    "s": 57.647,
    "l": 50
  },
  "oklch": {
    "l": 0.50299,
    "c": 0.18002,
    "h": 267
  },
  "luminance": 0.11981
}

Semantic roles & 50–950 ramp

primary

#3658C9

secondary

#CEBF8C

accent

#BD47E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3658C9

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

Preview Lab → · Contrast checker → · Palette generator →