#366AC7#366AC7

#366AC7 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 53.9% C 0.155 H 261.0°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#366AC7
RGB	rgb(54, 106, 199)
HSL	hsl(218, 57%, 50%)
HSV	hsv(218, 73%, 78%)
CMYK	cmyk(72.9%, 46.7%, 0%, 22%)
CIE-LAB	lab(45.93, 14.68, -53.53)
CIE-LCH	lch(45.93, 55.51, 285.34°)
OKLab	oklab(53.86% -0.0244 -0.1535)
OKLCH	oklch(53.86% 0.155 261)
XYZ	xyz(16.9805, 15.2140, 56.0634)
Luminance	0.1522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AC7 #C79336

analogous

#36B2C7 #366AC7 #4B36C7

triadic

#366AC7 #C7366A #6AC736

tetradic

#366AC7 #C736B2 #C79336 #36C74B

square

#366AC7 #C736B2 #C79336 #36C74B

split-complementary

#366AC7 #C74B36 #B2C736

monochromatic

#1C3767 #295097 #366AC7 #658DD5 #95B1E2

Accessibility & contrast

On white

5.19

#366AC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#366AC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AC7

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AC7	#FFFFFF	#000000	##FFFFFF
##366AC7	1.00	5.19	4.04	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3974CA

Deuteranopia (green-blind)

#1567C5

Tritanopia (blue-blind)

#00808F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366ac7;
/* rgb */ color: rgb(54, 106, 199);
/* oklch */ color: oklch(53.9% 0.155 261.0);

Tailwind

colors: {
  custom: {
    50: '#8094d8',
    500: '#366ac7',
    950: '#000000',
  },
}

SCSS

$custom: #366ac7;
$custom-light: #8094d8;
$custom-dark: #000000;

JSON

{
  "hex": "#366ac7",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 199
  },
  "hsl": {
    "h": 218.483,
    "s": 57.312,
    "l": 49.608
  },
  "oklch": {
    "l": 0.5386,
    "c": 0.15544,
    "h": 261
  },
  "luminance": 0.15216
}

Semantic roles & 50–950 ramp

primary

#366AC7

secondary

#CEB68B

accent

#AA47E1

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0B0D15

muted

#7C7E83

Preview Lab

Preview with #366AC7

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

Preview Lab → · Contrast checker → · Palette generator →