#366DA7#366DA7

#366DA7 is a mid, moderate cyan. Relative luminance 0.145; OKLCH L 52.5% C 0.109 H 251.7°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#366DA7
RGB	rgb(54, 109, 167)
HSL	hsl(211, 51%, 43%)
HSV	hsv(211, 68%, 65%)
CMYK	cmyk(67.7%, 34.7%, 0%, 34.5%)
CIE-LAB	lab(44.96, 1.08, -36.47)
CIE-LCH	lch(44.96, 36.49, 271.70°)
OKLab	oklab(52.51% -0.0342 -0.1034)
OKLCH	oklch(52.51% 0.109 251.7)
XYZ	xyz(13.9624, 14.5101, 38.6166)
Luminance	0.1451 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DA7 #A77036

analogous

#36A5A7 #366DA7 #3736A7

triadic

#366DA7 #A7366D #6DA736

tetradic

#366DA7 #A736A5 #A77036 #36A737

square

#366DA7 #A736A5 #A77036 #36A737

split-complementary

#366DA7 #A73736 #A5A736

monochromatic

#18314B #274F79 #366DA7 #538CC7 #81ABD6

Accessibility & contrast

On white

5.38

#366DA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#366DA7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DA7

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DA7	#FFFFFF	#000000	##FFFFFF
##366DA7	1.00	5.38	3.90	5.38
#FFFFFF	5.38	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5370A9

Deuteranopia (green-blind)

#4465A6

Tritanopia (blue-blind)

#007B82

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #366da7;
/* rgb */ color: rgb(54, 109, 167);
/* oklch */ color: oklch(52.5% 0.109 251.7);

Tailwind

colors: {
  custom: {
    50: '#7996c1',
    500: '#366da7',
    950: '#000000',
  },
}

SCSS

$custom: #366da7;
$custom-light: #7996c1;
$custom-dark: #000000;

JSON

{
  "hex": "#366da7",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 167
  },
  "hsl": {
    "h": 210.796,
    "s": 51.131,
    "l": 43.333
  },
  "oklch": {
    "l": 0.52512,
    "c": 0.10893,
    "h": 251.7
  },
  "luminance": 0.14512
}

Semantic roles & 50–950 ramp

primary

#366DA7

secondary

#C09D79

accent

#964DDB

background

#F7F9FB

surface

#EEF1F7

border

#C9CBD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366DA7

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

Preview Lab → · Contrast checker → · Palette generator →