#3771C1#3771C1

#3771C1 is a mid, vivid cyan. Relative luminance 0.165; OKLCH L 55.0% C 0.139 H 257.1°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#3771C1
RGB	rgb(55, 113, 193)
HSL	hsl(215, 56%, 49%)
HSV	hsv(215, 72%, 76%)
CMYK	cmyk(71.5%, 41.5%, 0%, 24.3%)
CIE-LAB	lab(47.59, 8.20, -47.42)
CIE-LCH	lch(47.59, 48.12, 279.81°)
OKLab	oklab(55.04% -0.031 -0.1354)
OKLCH	oklch(55.04% 0.139 257.1)
XYZ	xyz(17.1028, 16.4709, 52.7196)
Luminance	0.1647 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3771C1 #C18737

analogous

#37B6C1 #3771C1 #4237C1

triadic

#3771C1 #C13771 #71C137

tetradic

#3771C1 #C137B6 #C18737 #37C142

square

#3771C1 #C137B6 #C18737 #37C142

split-complementary

#3771C1 #C14237 #B6C137

monochromatic

#1C3962 #295591 #3771C1 #6392D2 #92B3E0

Accessibility & contrast

On white

4.89

#3771C1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#3771C1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3771C1

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3771C1	#FFFFFF	#000000	##FFFFFF
##3771C1	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B78C4

Deuteranopia (green-blind)

#346BBF

Tritanopia (blue-blind)

#00848F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3771c1;
/* rgb */ color: rgb(55, 113, 193);
/* oklch */ color: oklch(55.0% 0.139 257.1);

Tailwind

colors: {
  custom: {
    50: '#7f99d4',
    500: '#3771c1',
    950: '#000000',
  },
}

SCSS

$custom: #3771c1;
$custom-light: #7f99d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3771c1",
  "rgb": {
    "r": 55,
    "g": 113,
    "b": 193
  },
  "hsl": {
    "h": 214.783,
    "s": 55.645,
    "l": 48.627
  },
  "oklch": {
    "l": 0.55036,
    "c": 0.13891,
    "h": 257.1
  },
  "luminance": 0.16473
}

Semantic roles & 50–950 ramp

primary

#3771C1

secondary

#CBAF89

accent

#A049DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3771C1

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

Preview Lab → · Contrast checker → · Palette generator →