#366FAB#366FAB

#366FAB is a mid, moderate cyan. Relative luminance 0.151; OKLCH L 53.2% C 0.112 H 251.7°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#366FAB
RGB	rgb(54, 111, 171)
HSL	hsl(211, 52%, 44%)
HSV	hsv(211, 68%, 67%)
CMYK	cmyk(68.4%, 35.1%, 0%, 32.9%)
CIE-LAB	lab(45.76, 1.29, -37.55)
CIE-LCH	lch(45.76, 37.57, 271.97°)
OKLab	oklab(53.21% -0.0352 -0.1065)
OKLCH	oklch(53.21% 0.112 251.7)
XYZ	xyz(14.5537, 15.0919, 40.6662)
Luminance	0.1509 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FAB #AB7236

analogous

#36AAAB #366FAB #3736AB

triadic

#366FAB #AB366F #6FAB36

tetradic

#366FAB #AB36AA #AB7236 #36AB37

square

#366FAB #AB36AA #AB7236 #36AB37

split-complementary

#366FAB #AB3736 #AAAB36

monochromatic

#19334E #27517C #366FAB #558EC9 #83ADD8

Accessibility & contrast

On white

5.23

#366FAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#366FAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FAB

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FAB	#FFFFFF	#000000	##FFFFFF
##366FAB	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5472AE

Deuteranopia (green-blind)

#4467AA

Tritanopia (blue-blind)

#007D85

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #366fab;
/* rgb */ color: rgb(54, 111, 171);
/* oklch */ color: oklch(53.2% 0.112 251.7);

Tailwind

colors: {
  custom: {
    50: '#7a98c4',
    500: '#366fab',
    950: '#000000',
  },
}

SCSS

$custom: #366fab;
$custom-light: #7a98c4;
$custom-dark: #000000;

JSON

{
  "hex": "#366fab",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 171
  },
  "hsl": {
    "h": 210.769,
    "s": 52,
    "l": 44.118
  },
  "oklch": {
    "l": 0.5321,
    "c": 0.11219,
    "h": 251.7
  },
  "luminance": 0.15093
}

Semantic roles & 50–950 ramp

primary

#366FAB

secondary

#C29F7B

accent

#964CDB

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366FAB

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

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