#366CB4#366CB4

#366CB4 is a mid, vivid cyan. Relative luminance 0.148; OKLCH L 53.1% C 0.127 H 256.4°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#366CB4
RGB	rgb(54, 108, 180)
HSL	hsl(214, 54%, 46%)
HSV	hsv(214, 70%, 71%)
CMYK	cmyk(70%, 40%, 0%, 29.4%)
CIE-LAB	lab(45.36, 6.42, -43.43)
CIE-LCH	lch(45.36, 43.90, 278.41°)
OKLab	oklab(53.06% -0.0299 -0.1238)
OKLCH	oklch(53.06% 0.127 256.4)
XYZ	xyz(15.1191, 14.8031, 45.2316)
Luminance	0.1480 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366CB4 #B47E36

analogous

#36ABB4 #366CB4 #3F36B4

triadic

#366CB4 #B4366C #6CB436

tetradic

#366CB4 #B436AB #B47E36 #36B43F

square

#366CB4 #B436AB #B47E36 #36B43F

split-complementary

#366CB4 #B43F36 #ABB436

monochromatic

#1A3456 #285085 #366CB4 #5A8BCD #89ACDC

Accessibility & contrast

On white

5.30

#366CB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#366CB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366CB4

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366CB4	#FFFFFF	#000000	##FFFFFF
##366CB4	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B72B7

Deuteranopia (green-blind)

#3766B3

Tritanopia (blue-blind)

#007D87

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #366cb4;
/* rgb */ color: rgb(54, 108, 180);
/* oklch */ color: oklch(53.1% 0.127 256.4);

Tailwind

colors: {
  custom: {
    50: '#7c95cb',
    500: '#366cb4',
    950: '#000000',
  },
}

SCSS

$custom: #366cb4;
$custom-light: #7c95cb;
$custom-dark: #000000;

JSON

{
  "hex": "#366cb4",
  "rgb": {
    "r": 54,
    "g": 108,
    "b": 180
  },
  "hsl": {
    "h": 214.286,
    "s": 53.846,
    "l": 45.882
  },
  "oklch": {
    "l": 0.53059,
    "c": 0.12736,
    "h": 256.4
  },
  "luminance": 0.14805
}

Semantic roles & 50–950 ramp

primary

#366CB4

secondary

#C6A880

accent

#9E4BDD

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #366CB4

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

Preview Lab → · Contrast checker → · Palette generator →