#366AC9#366AC9

#366AC9 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.0% C 0.158 H 261.3°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#366AC9
RGB	rgb(54, 106, 201)
HSL	hsl(219, 58%, 50%)
HSV	hsv(219, 73%, 79%)
CMYK	cmyk(73.1%, 47.3%, 0%, 21.2%)
CIE-LAB	lab(46.05, 15.42, -54.48)
CIE-LCH	lch(46.05, 56.62, 285.81°)
OKLab	oklab(54% -0.024 -0.1563)
OKLCH	oklch(54% 0.158 261.3)
XYZ	xyz(17.2142, 15.3075, 57.2944)
Luminance	0.1531 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AC9 #C99536

analogous

#36B3C9 #366AC9 #4C36C9

triadic

#366AC9 #C9366A #6AC936

tetradic

#366AC9 #C936B3 #C99536 #36C94C

square

#366AC9 #C936B3 #C99536 #36C94C

split-complementary

#366AC9 #C94C36 #B3C936

monochromatic

#1C3769 #295199 #366AC9 #668ED6 #96B2E3

Accessibility & contrast

On white

5.17

#366AC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#366AC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AC9

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AC9	#FFFFFF	#000000	##FFFFFF
##366AC9	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3774CD

Deuteranopia (green-blind)

#0E67C7

Tritanopia (blue-blind)

#008090

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366ac9;
/* rgb */ color: rgb(54, 106, 201);
/* oklch */ color: oklch(54.0% 0.158 261.3);

Tailwind

colors: {
  custom: {
    50: '#8094da',
    500: '#366ac9',
    950: '#000000',
  },
}

SCSS

$custom: #366ac9;
$custom-light: #8094da;
$custom-dark: #000000;

JSON

{
  "hex": "#366ac9",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 201
  },
  "hsl": {
    "h": 218.776,
    "s": 57.647,
    "l": 50
  },
  "oklch": {
    "l": 0.53998,
    "c": 0.15814,
    "h": 261.3
  },
  "luminance": 0.15309
}

Semantic roles & 50–950 ramp

primary

#366AC9

secondary

#CEB78C

accent

#AA47E1

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #366AC9

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

Preview Lab → · Contrast checker → · Palette generator →