#366EA7#366EA7

#366EA7 is a mid, moderate cyan. Relative luminance 0.147; OKLCH L 52.7% C 0.108 H 250.9°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#366EA7
RGB	rgb(54, 110, 167)
HSL	hsl(210, 51%, 43%)
HSV	hsv(210, 68%, 65%)
CMYK	cmyk(67.7%, 34.1%, 0%, 34.5%)
CIE-LAB	lab(45.25, 0.47, -36.00)
CIE-LCH	lch(45.25, 36.00, 270.74°)
OKLab	oklab(52.75% -0.0352 -0.102)
OKLCH	oklch(52.75% 0.108 250.9)
XYZ	xyz(14.0697, 14.7247, 38.6524)
Luminance	0.1473 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EA7 #A76F36

analogous

#36A6A7 #366EA7 #3636A7

triadic

#366EA7 #A7366E #6EA736

tetradic

#366EA7 #A736A6 #A76F36 #36A736

square

#366EA7 #A736A6 #A76F36 #36A736

split-complementary

#366EA7 #A73636 #A6A736

monochromatic

#18314B #275079 #366EA7 #538DC7 #81ABD6

Accessibility & contrast

On white

5.32

#366EA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#366EA7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EA7

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EA7	#FFFFFF	#000000	##FFFFFF
##366EA7	1.00	5.32	3.95	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5571A9

Deuteranopia (green-blind)

#4566A6

Tritanopia (blue-blind)

#007B83

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #366ea7;
/* rgb */ color: rgb(54, 110, 167);
/* oklch */ color: oklch(52.7% 0.108 250.9);

Tailwind

colors: {
  custom: {
    50: '#7997c1',
    500: '#366ea7',
    950: '#000000',
  },
}

SCSS

$custom: #366ea7;
$custom-light: #7997c1;
$custom-dark: #000000;

JSON

{
  "hex": "#366ea7",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 167
  },
  "hsl": {
    "h": 210.265,
    "s": 51.131,
    "l": 43.333
  },
  "oklch": {
    "l": 0.52746,
    "c": 0.10794,
    "h": 250.9
  },
  "luminance": 0.14726
}

Semantic roles & 50–950 ramp

primary

#366EA7

secondary

#C09D79

accent

#954DDB

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366EA7

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

Preview Lab → · Contrast checker → · Palette generator →