#366EA9#366EA9

#366EA9 is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.9% C 0.111 H 251.7°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#366EA9
RGB	rgb(54, 110, 169)
HSL	hsl(211, 52%, 44%)
HSV	hsv(211, 68%, 66%)
CMYK	cmyk(68%, 34.9%, 0%, 33.7%)
CIE-LAB	lab(45.36, 1.18, -37.01)
CIE-LCH	lch(45.36, 37.03, 271.83°)
OKLab	oklab(52.86% -0.0347 -0.105)
OKLCH	oklch(52.86% 0.111 251.7)
XYZ	xyz(14.2560, 14.7992, 39.6337)
Luminance	0.1480 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EA9 #A97136

analogous

#36A7A9 #366EA9 #3736A9

triadic

#366EA9 #A9366E #6EA936

tetradic

#366EA9 #A936A7 #A97136 #36A937

square

#366EA9 #A936A7 #A97136 #36A937

split-complementary

#366EA9 #A93736 #A7A936

monochromatic

#18324C #27507B #366EA9 #548DC8 #82ACD7

Accessibility & contrast

On white

5.30

#366EA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#366EA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EA9

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EA9	#FFFFFF	#000000	##FFFFFF
##366EA9	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5471AB

Deuteranopia (green-blind)

#4466A8

Tritanopia (blue-blind)

#007C83

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #366ea9;
/* rgb */ color: rgb(54, 110, 169);
/* oklch */ color: oklch(52.9% 0.111 251.7);

Tailwind

colors: {
  custom: {
    50: '#7a97c3',
    500: '#366ea9',
    950: '#000000',
  },
}

SCSS

$custom: #366ea9;
$custom-light: #7a97c3;
$custom-dark: #000000;

JSON

{
  "hex": "#366ea9",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 169
  },
  "hsl": {
    "h": 210.783,
    "s": 51.57,
    "l": 43.725
  },
  "oklch": {
    "l": 0.52861,
    "c": 0.11056,
    "h": 251.7
  },
  "luminance": 0.14801
}

Semantic roles & 50–950 ramp

primary

#366EA9

secondary

#C19E7A

accent

#964DDB

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366EA9

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

Preview Lab → · Contrast checker → · Palette generator →