#366FAD#366FAD

#366FAD is a mid, moderate cyan. Relative luminance 0.152; OKLCH L 53.3% C 0.115 H 252.5°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#366FAD
RGB	rgb(54, 111, 173)
HSL	hsl(211, 52%, 45%)
HSV	hsv(211, 69%, 68%)
CMYK	cmyk(68.8%, 35.8%, 0%, 32.2%)
CIE-LAB	lab(45.86, 2.01, -38.55)
CIE-LCH	lch(45.86, 38.60, 272.98°)
OKLab	oklab(53.33% -0.0346 -0.1095)
OKLCH	oklch(53.33% 0.115 252.5)
XYZ	xyz(14.7458, 15.1687, 41.6778)
Luminance	0.1517 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FAD #AD7436

analogous

#36AAAD #366FAD #3936AD

triadic

#366FAD #AD366F #6FAD36

tetradic

#366FAD #AD36AA #AD7436 #36AD39

square

#366FAD #AD36AA #AD7436 #36AD39

split-complementary

#366FAD #AD3936 #AAAD36

monochromatic

#193350 #27517E #366FAD #568ECA #85ADD9

Accessibility & contrast

On white

5.21

#366FAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#366FAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FAD

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FAD	#FFFFFF	#000000	##FFFFFF
##366FAD	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5373B0

Deuteranopia (green-blind)

#4268AC

Tritanopia (blue-blind)

#007D86

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366fad;
/* rgb */ color: rgb(54, 111, 173);
/* oklch */ color: oklch(53.3% 0.115 252.5);

Tailwind

colors: {
  custom: {
    50: '#7a98c6',
    500: '#366fad',
    950: '#000000',
  },
}

SCSS

$custom: #366fad;
$custom-light: #7a98c6;
$custom-dark: #000000;

JSON

{
  "hex": "#366fad",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 173
  },
  "hsl": {
    "h": 211.261,
    "s": 52.423,
    "l": 44.51
  },
  "oklch": {
    "l": 0.53326,
    "c": 0.11481,
    "h": 252.5
  },
  "luminance": 0.1517
}

Semantic roles & 50–950 ramp

primary

#366FAD

secondary

#C2A17C

accent

#974CDC

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #366FAD

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

Preview Lab → · Contrast checker → · Palette generator →