#366ABB#366ABB

#366ABB is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.1% C 0.139 H 259.0°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#366ABB
RGB	rgb(54, 106, 187)
HSL	hsl(217, 55%, 47%)
HSV	hsv(217, 71%, 73%)
CMYK	cmyk(71.1%, 43.3%, 0%, 26.7%)
CIE-LAB	lab(45.19, 10.25, -47.78)
CIE-LCH	lch(45.19, 48.86, 282.11°)
OKLab	oklab(53.06% -0.0265 -0.1366)
OKLCH	oklch(53.06% 0.139 259)
XYZ	xyz(15.6418, 14.6785, 49.0130)
Luminance	0.1468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366ABB #BB8736

analogous

#36ADBB #366ABB #4436BB

triadic

#366ABB #BB366A #6ABB36

tetradic

#366ABB #BB36AD #BB8736 #36BB44

square

#366ABB #BB36AD #BB8736 #36BB44

split-complementary

#366ABB #BB4436 #ADBB36

monochromatic

#1B345C #284F8C #366ABB #5E8BD0 #8DADDE

Accessibility & contrast

On white

5.34

#366ABB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#366ABB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366ABB

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366ABB	#FFFFFF	#000000	##FFFFFF
##366ABB	1.00	5.34	3.94	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4372BE

Deuteranopia (green-blind)

#2B65B9

Tritanopia (blue-blind)

#007D89

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #366abb;
/* rgb */ color: rgb(54, 106, 187);
/* oklch */ color: oklch(53.1% 0.139 259.0);

Tailwind

colors: {
  custom: {
    50: '#7d94d0',
    500: '#366abb',
    950: '#000000',
  },
}

SCSS

$custom: #366abb;
$custom-light: #7d94d0;
$custom-dark: #000000;

JSON

{
  "hex": "#366abb",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 187
  },
  "hsl": {
    "h": 216.541,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53057,
    "c": 0.13913,
    "h": 259
  },
  "luminance": 0.1468
}

Semantic roles & 50–950 ramp

primary

#366ABB

secondary

#C9AE84

accent

#A449DF

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366ABB

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

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