#3771A9#3771A9

#3771A9 is a mid, moderate cyan. Relative luminance 0.155; OKLCH L 53.6% C 0.107 H 249.8°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#3771A9
RGB	rgb(55, 113, 169)
HSL	hsl(209, 51%, 44%)
HSV	hsv(209, 67%, 66%)
CMYK	cmyk(67.5%, 33.1%, 0%, 33.7%)
CIE-LAB	lab(46.29, -0.48, -35.54)
CIE-LCH	lch(46.29, 35.54, 269.22°)
OKLab	oklab(53.6% -0.0371 -0.1006)
OKLCH	oklch(53.6% 0.107 249.8)
XYZ	xyz(14.6394, 15.4855, 39.7459)
Luminance	0.1549 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3771A9 #A96F37

analogous

#37A9A8 #3771A9 #3738A9

triadic

#3771A9 #A93771 #71A937

tetradic

#3771A9 #A837A9 #A96F37 #38A937

square

#3771A9 #A837A9 #A96F37 #38A937

split-complementary

#3771A9 #A93738 #A9A837

monochromatic

#19334D #28527B #3771A9 #5590C8 #84AED7

Accessibility & contrast

On white

5.13

#3771A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#3771A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3771A9

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3771A9	#FFFFFF	#000000	##FFFFFF
##3771A9	1.00	5.13	4.10	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5874AB

Deuteranopia (green-blind)

#4869A8

Tritanopia (blue-blind)

#007E85

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3771a9;
/* rgb */ color: rgb(55, 113, 169);
/* oklch */ color: oklch(53.6% 0.107 249.8);

Tailwind

colors: {
  custom: {
    50: '#7a99c3',
    500: '#3771a9',
    950: '#000000',
  },
}

SCSS

$custom: #3771a9;
$custom-light: #7a99c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3771a9",
  "rgb": {
    "r": 55,
    "g": 113,
    "b": 169
  },
  "hsl": {
    "h": 209.474,
    "s": 50.893,
    "l": 43.922
  },
  "oklch": {
    "l": 0.53604,
    "c": 0.10724,
    "h": 249.8
  },
  "luminance": 0.15487
}

Semantic roles & 50–950 ramp

primary

#3771A9

secondary

#C09D7B

accent

#934DDA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #3771A9

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

Preview Lab → · Contrast checker → · Palette generator →