#3771AD#3771AD

#3771AD is a mid, moderate cyan. Relative luminance 0.156; OKLCH L 53.8% C 0.112 H 251.4°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#3771AD
RGB	rgb(55, 113, 173)
HSL	hsl(211, 52%, 45%)
HSV	hsv(211, 68%, 68%)
CMYK	cmyk(68.2%, 34.7%, 0%, 32.2%)
CIE-LAB	lab(46.50, 0.95, -37.55)
CIE-LCH	lch(46.50, 37.56, 271.44°)
OKLab	oklab(53.83% -0.0359 -0.1065)
OKLCH	oklch(53.83% 0.112 251.4)
XYZ	xyz(15.0207, 15.6381, 41.7539)
Luminance	0.1564 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3771AD #AD7337

analogous

#37ACAD #3771AD #3837AD

triadic

#3771AD #AD3771 #71AD37

tetradic

#3771AD #AD37AC #AD7337 #37AD38

square

#3771AD #AD37AC #AD7337 #37AD38

split-complementary

#3771AD #AD3837 #ACAD37

monochromatic

#193450 #28537F #3771AD #5790CA #86AFD8

Accessibility & contrast

On white

5.09

#3771AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#3771AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3771AD

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3771AD	#FFFFFF	#000000	##FFFFFF
##3771AD	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5674B0

Deuteranopia (green-blind)

#4669AC

Tritanopia (blue-blind)

#007F87

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3771ad;
/* rgb */ color: rgb(55, 113, 173);
/* oklch */ color: oklch(53.8% 0.112 251.4);

Tailwind

colors: {
  custom: {
    50: '#7b99c6',
    500: '#3771ad',
    950: '#000000',
  },
}

SCSS

$custom: #3771ad;
$custom-light: #7b99c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3771ad",
  "rgb": {
    "r": 55,
    "g": 113,
    "b": 173
  },
  "hsl": {
    "h": 210.508,
    "s": 51.754,
    "l": 44.706
  },
  "oklch": {
    "l": 0.53831,
    "c": 0.11241,
    "h": 251.4
  },
  "luminance": 0.1564
}

Semantic roles & 50–950 ramp

primary

#3771AD

secondary

#C2A07D

accent

#954DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3771AD

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

Preview Lab → · Contrast checker → · Palette generator →