#366AA8#366AA8

#366AA8 is a mid, moderate cyan. Relative luminance 0.139; OKLCH L 51.9% C 0.113 H 254.2°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#366AA8
RGB	rgb(54, 106, 168)
HSL	hsl(213, 51%, 44%)
HSV	hsv(213, 68%, 66%)
CMYK	cmyk(67.9%, 36.9%, 0%, 34.1%)
CIE-LAB	lab(44.12, 3.30, -38.39)
CIE-LCH	lch(44.12, 38.53, 274.91°)
OKLab	oklab(51.87% -0.0308 -0.1091)
OKLCH	oklch(51.87% 0.113 254.2)
XYZ	xyz(13.7407, 13.9181, 39.0005)
Luminance	0.1392 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AA8 #A87436

analogous

#36A3A8 #366AA8 #3B36A8

triadic

#366AA8 #A8366A #6AA836

tetradic

#366AA8 #A836A3 #A87436 #36A83B

square

#366AA8 #A836A3 #A87436 #36A83B

split-complementary

#366AA8 #A83B36 #A3A836

monochromatic

#18304B #274D7A #366AA8 #5388C8 #82A8D7

Accessibility & contrast

On white

5.55

#366AA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#366AA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AA8

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AA8	#FFFFFF	#000000	##FFFFFF
##366AA8	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E6EAB

Deuteranopia (green-blind)

#3E63A7

Tritanopia (blue-blind)

#007881

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #366aa8;
/* rgb */ color: rgb(54, 106, 168);
/* oklch */ color: oklch(51.9% 0.113 254.2);

Tailwind

colors: {
  custom: {
    50: '#7a94c2',
    500: '#366aa8',
    950: '#000000',
  },
}

SCSS

$custom: #366aa8;
$custom-light: #7a94c2;
$custom-dark: #000000;

JSON

{
  "hex": "#366aa8",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 168
  },
  "hsl": {
    "h": 212.632,
    "s": 51.351,
    "l": 43.529
  },
  "oklch": {
    "l": 0.51871,
    "c": 0.11333,
    "h": 254.2
  },
  "luminance": 0.13919
}

Semantic roles & 50–950 ramp

primary

#366AA8

secondary

#C0A07A

accent

#9A4DDB

background

#F7F9FB

surface

#EEF1F7

border

#C9CBD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366AA8

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

Preview Lab → · Contrast checker → · Palette generator →