#366AC8#366AC8

#366AC8 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 53.9% C 0.157 H 261.1°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#366AC8
RGB	rgb(54, 106, 200)
HSL	hsl(219, 57%, 50%)
HSV	hsv(219, 73%, 78%)
CMYK	cmyk(73%, 47%, 0%, 21.6%)
CIE-LAB	lab(45.99, 15.05, -54.01)
CIE-LCH	lch(45.99, 56.06, 285.57°)
OKLab	oklab(53.93% -0.0242 -0.1549)
OKLCH	oklch(53.93% 0.157 261.1)
XYZ	xyz(17.0969, 15.2606, 56.6769)
Luminance	0.1526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AC8 #C89436

analogous

#36B3C8 #366AC8 #4B36C8

triadic

#366AC8 #C8366A #6AC836

tetradic

#366AC8 #C836B3 #C89436 #36C84B

square

#366AC8 #C836B3 #C89436 #36C84B

split-complementary

#366AC8 #C84B36 #B3C836

monochromatic

#1C3768 #295098 #366AC8 #668DD6 #96B1E3

Accessibility & contrast

On white

5.18

#366AC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#366AC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AC8

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AC8	#FFFFFF	#000000	##FFFFFF
##366AC8	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3874CC

Deuteranopia (green-blind)

#1267C6

Tritanopia (blue-blind)

#00808F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366ac8;
/* rgb */ color: rgb(54, 106, 200);
/* oklch */ color: oklch(53.9% 0.157 261.1);

Tailwind

colors: {
  custom: {
    50: '#8094d9',
    500: '#366ac8',
    950: '#000000',
  },
}

SCSS

$custom: #366ac8;
$custom-light: #8094d9;
$custom-dark: #000000;

JSON

{
  "hex": "#366ac8",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 200
  },
  "hsl": {
    "h": 218.63,
    "s": 57.48,
    "l": 49.804
  },
  "oklch": {
    "l": 0.53929,
    "c": 0.15679,
    "h": 261.1
  },
  "luminance": 0.15262
}

Semantic roles & 50–950 ramp

primary

#366AC8

secondary

#CEB68C

accent

#AA47E1

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #366AC8

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

Preview Lab → · Contrast checker → · Palette generator →