#3771AC#3771AC

#3771AC is a mid, moderate cyan. Relative luminance 0.156; OKLCH L 53.8% C 0.111 H 251.0°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#3771AC
RGB	rgb(55, 113, 172)
HSL	hsl(210, 52%, 45%)
HSV	hsv(210, 68%, 67%)
CMYK	cmyk(68%, 34.3%, 0%, 32.5%)
CIE-LAB	lab(46.44, 0.59, -37.05)
CIE-LCH	lch(46.44, 37.05, 270.91°)
OKLab	oklab(53.77% -0.0362 -0.105)
OKLCH	oklch(53.77% 0.111 251)
XYZ	xyz(14.9243, 15.5995, 41.2462)
Luminance	0.1560 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3771AC #AC7237

analogous

#37ACAC #3771AC #3737AC

triadic

#3771AC #AC3771 #71AC37

tetradic

#3771AC #AC37AC #AC7237 #37AC37

square

#3771AC #AC37AC #AC7237 #37AC37

split-complementary

#3771AC #AC3737 #ACAC37

monochromatic

#19344F #28537E #3771AC #5790C9 #85AED8

Accessibility & contrast

On white

5.10

#3771AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#3771AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3771AC

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3771AC	#FFFFFF	#000000	##FFFFFF
##3771AC	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5774AE

Deuteranopia (green-blind)

#4669AB

Tritanopia (blue-blind)

#007F86

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3771ac;
/* rgb */ color: rgb(55, 113, 172);
/* oklch */ color: oklch(53.8% 0.111 251.0);

Tailwind

colors: {
  custom: {
    50: '#7b99c5',
    500: '#3771ac',
    950: '#000000',
  },
}

SCSS

$custom: #3771ac;
$custom-light: #7b99c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3771ac",
  "rgb": {
    "r": 55,
    "g": 113,
    "b": 172
  },
  "hsl": {
    "h": 210.256,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.53774,
    "c": 0.11111,
    "h": 251
  },
  "luminance": 0.15601
}

Semantic roles & 50–950 ramp

primary

#3771AC

secondary

#C2A07D

accent

#954DDB

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3771AC

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

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