#3773B0#3773B0

#3773B0 is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 54.5% C 0.114 H 251.0°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3773B0
RGB	rgb(55, 115, 176)
HSL	hsl(210, 52%, 45%)
HSV	hsv(210, 69%, 69%)
CMYK	cmyk(68.8%, 34.7%, 0%, 31%)
CIE-LAB	lab(47.24, 0.80, -38.12)
CIE-LCH	lch(47.24, 38.13, 271.20°)
OKLab	oklab(54.47% -0.0371 -0.1081)
OKLCH	oklch(54.47% 0.114 251)
XYZ	xyz(15.5398, 16.2067, 43.3751)
Luminance	0.1621 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3773B0 #B07437

analogous

#37AFB0 #3773B0 #3737B0

triadic

#3773B0 #B03773 #73B037

tetradic

#3773B0 #B037AF #B07437 #37B037

square

#3773B0 #B037AF #B07437 #37B037

split-complementary

#3773B0 #B03737 #AFB037

monochromatic

#1A3653 #285581 #3773B0 #5992CB #88B0DA

Accessibility & contrast

On white

4.95

#3773B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#3773B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3773B0

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3773B0	#FFFFFF	#000000	##FFFFFF
##3773B0	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5876B3

Deuteranopia (green-blind)

#476BAF

Tritanopia (blue-blind)

#008189

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3773b0;
/* rgb */ color: rgb(55, 115, 176);
/* oklch */ color: oklch(54.5% 0.114 251.0);

Tailwind

colors: {
  custom: {
    50: '#7b9ac8',
    500: '#3773b0',
    950: '#000000',
  },
}

SCSS

$custom: #3773b0;
$custom-light: #7b9ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#3773b0",
  "rgb": {
    "r": 55,
    "g": 115,
    "b": 176
  },
  "hsl": {
    "h": 210.248,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.54468,
    "c": 0.11434,
    "h": 251
  },
  "luminance": 0.16208
}

Semantic roles & 50–950 ramp

primary

#3773B0

secondary

#C4A27F

accent

#944CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3773B0

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

Preview Lab → · Contrast checker → · Palette generator →