#366EB7#366EB7

#366EB7 is a mid, vivid cyan. Relative luminance 0.154; OKLCH L 53.7% C 0.129 H 256.1°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#366EB7
RGB	rgb(54, 110, 183)
HSL	hsl(214, 54%, 46%)
HSV	hsv(214, 70%, 72%)
CMYK	cmyk(70.5%, 39.9%, 0%, 28.2%)
CIE-LAB	lab(46.11, 6.26, -43.98)
CIE-LCH	lch(46.11, 44.42, 278.11°)
OKLab	oklab(53.7% -0.0311 -0.1254)
OKLCH	oklch(53.7% 0.129 256.1)
XYZ	xyz(15.6414, 15.3534, 46.9297)
Luminance	0.1535 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EB7 #B77F36

analogous

#36AFB7 #366EB7 #3E36B7

triadic

#366EB7 #B7366E #6EB736

tetradic

#366EB7 #B736AF #B77F36 #36B73E

square

#366EB7 #B736AF #B77F36 #36B73E

split-complementary

#366EB7 #B73E36 #AFB736

monochromatic

#1A3558 #285288 #366EB7 #5B8ECF #8BAEDD

Accessibility & contrast

On white

5.16

#366EB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#366EB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EB7

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EB7	#FFFFFF	#000000	##FFFFFF
##366EB7	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C74BA

Deuteranopia (green-blind)

#3868B6

Tritanopia (blue-blind)

#007F89

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366eb7;
/* rgb */ color: rgb(54, 110, 183);
/* oklch */ color: oklch(53.7% 0.129 256.1);

Tailwind

colors: {
  custom: {
    50: '#7c97cd',
    500: '#366eb7',
    950: '#000000',
  },
}

SCSS

$custom: #366eb7;
$custom-light: #7c97cd;
$custom-dark: #000000;

JSON

{
  "hex": "#366eb7",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 183
  },
  "hsl": {
    "h": 213.953,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.53698,
    "c": 0.12919,
    "h": 256.1
  },
  "luminance": 0.15355
}

Semantic roles & 50–950 ramp

primary

#366EB7

secondary

#C7A982

accent

#9E4ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #366EB7

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

Preview Lab → · Contrast checker → · Palette generator →