#3791AA#3791AA

#3791AA is a mid, moderate cyan. Relative luminance 0.240; OKLCH L 61.4% C 0.092 H 219.6°. Best body text is #000000 at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#3791AA
RGB	rgb(55, 145, 170)
HSL	hsl(193, 51%, 44%)
HSV	hsv(193, 68%, 67%)
CMYK	cmyk(67.6%, 14.7%, 0%, 33.3%)
CIE-LAB	lab(56.05, -18.45, -20.96)
CIE-LCH	lch(56.05, 27.92, 228.64°)
OKLab	oklab(61.37% -0.0705 -0.0584)
OKLCH	oklch(61.37% 0.092 219.6)
XYZ	xyz(18.9537, 23.9632, 41.6489)
Luminance	0.2397 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3791AA #AA5037

analogous

#37AA8A #3791AA #3758AA

triadic

#3791AA #AA3791 #91AA37

tetradic

#3791AA #8A37AA #AA5037 #58AA37

square

#3791AA #8A37AA #AA5037 #58AA37

split-complementary

#3791AA #AA3758 #AA8A37

monochromatic

#19424E #286A7C #3791AA #56AFC8 #84C5D7

Accessibility & contrast

On white

3.63

#3791AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.79

#3791AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3791AA

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3791AA	#FFFFFF	#000000	##000000
##3791AA	1.00	3.63	5.79	5.79
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.79	21.00	1.00	1.00
##000000	5.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#828DAB

Deuteranopia (green-blind)

#7181AA

Tritanopia (blue-blind)

#009999

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3791aa;
/* rgb */ color: rgb(55, 145, 170);
/* oklch */ color: oklch(61.4% 0.092 219.6);

Tailwind

colors: {
  custom: {
    50: '#7cb1c3',
    500: '#3791aa',
    950: '#000000',
  },
}

SCSS

$custom: #3791aa;
$custom-light: #7cb1c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3791aa",
  "rgb": {
    "r": 55,
    "g": 145,
    "b": 170
  },
  "hsl": {
    "h": 193.043,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.61371,
    "c": 0.09157,
    "h": 219.6
  },
  "luminance": 0.23965
}

Semantic roles & 50–950 ramp

primary

#3791AA

secondary

#C18B7C

accent

#6C4DDB

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #3791AA

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

Preview Lab → · Contrast checker → · Palette generator →