#366BB0#366BB0

#366BB0 is a mid, vivid cyan. Relative luminance 0.144; OKLCH L 52.6% C 0.123 H 256.0°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#366BB0
RGB	rgb(54, 107, 176)
HSL	hsl(214, 53%, 45%)
HSV	hsv(214, 69%, 69%)
CMYK	cmyk(69.3%, 39.2%, 0%, 31%)
CIE-LAB	lab(44.85, 5.58, -41.92)
CIE-LCH	lch(44.85, 42.29, 277.59°)
OKLab	oklab(52.59% -0.0298 -0.1194)
OKLCH	oklch(52.59% 0.123 256)
XYZ	xyz(14.6126, 14.4327, 43.0816)
Luminance	0.1443 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BB0 #B07B36

analogous

#36A8B0 #366BB0 #3E36B0

triadic

#366BB0 #B0366B #6BB036

tetradic

#366BB0 #B036A8 #B07B36 #36B03E

square

#366BB0 #B036A8 #B07B36 #36B03E

split-complementary

#366BB0 #B03E36 #A8B036

monochromatic

#193252 #284F81 #366BB0 #588ACC #86ABDA

Accessibility & contrast

On white

5.40

#366BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#366BB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BB0

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BB0	#FFFFFF	#000000	##FFFFFF
##366BB0	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C70B3

Deuteranopia (green-blind)

#3965AF

Tritanopia (blue-blind)

#007B85

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #366bb0;
/* rgb */ color: rgb(54, 107, 176);
/* oklch */ color: oklch(52.6% 0.123 256.0);

Tailwind

colors: {
  custom: {
    50: '#7b94c8',
    500: '#366bb0',
    950: '#000000',
  },
}

SCSS

$custom: #366bb0;
$custom-light: #7b94c8;
$custom-dark: #000000;

JSON

{
  "hex": "#366bb0",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 176
  },
  "hsl": {
    "h": 213.934,
    "s": 53.043,
    "l": 45.098
  },
  "oklch": {
    "l": 0.52585,
    "c": 0.12305,
    "h": 256
  },
  "luminance": 0.14434
}

Semantic roles & 50–950 ramp

primary

#366BB0

secondary

#C4A57E

accent

#9D4BDC

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #366BB0

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

Preview Lab → · Contrast checker → · Palette generator →