#3A66AE#3A66AE

#3A66AE is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.5% C 0.124 H 259.8°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#3A66AE
RGB	rgb(58, 102, 174)
HSL	hsl(217, 50%, 45%)
HSV	hsv(217, 67%, 68%)
CMYK	cmyk(66.7%, 41.4%, 0%, 31.8%)
CIE-LAB	lab(43.44, 8.67, -42.97)
CIE-LCH	lch(43.44, 43.84, 281.41°)
OKLab	oklab(51.5% -0.0221 -0.1225)
OKLCH	oklch(51.5% 0.124 259.8)
XYZ	xyz(14.1336, 13.4569, 41.8888)
Luminance	0.1346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A66AE #AE823A

analogous

#3AA0AE #3A66AE #483AAE

triadic

#3A66AE #AE3A66 #66AE3A

tetradic

#3A66AE #AE3AA0 #AE823A #3AAE48

square

#3A66AE #AE3AA0 #AE823A #3AAE48

split-complementary

#3A66AE #AE483A #A0AE3A

monochromatic

#1B3052 #2B4B80 #3A66AE #5C86C9 #8AA8D8

Accessibility & contrast

On white

5.69

#3A66AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#3A66AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A66AE

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A66AE	#FFFFFF	#000000	##FFFFFF
##3A66AE	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456CB1

Deuteranopia (green-blind)

#3362AD

Tritanopia (blue-blind)

#007781

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3a66ae;
/* rgb */ color: rgb(58, 102, 174);
/* oklch */ color: oklch(51.5% 0.124 259.8);

Tailwind

colors: {
  custom: {
    50: '#7c91c6',
    500: '#3a66ae',
    950: '#000000',
  },
}

SCSS

$custom: #3a66ae;
$custom-light: #7c91c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3a66ae",
  "rgb": {
    "r": 58,
    "g": 102,
    "b": 174
  },
  "hsl": {
    "h": 217.241,
    "s": 50,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51504,
    "c": 0.12446,
    "h": 259.8
  },
  "luminance": 0.13458
}

Semantic roles & 50–950 ramp

primary

#3A66AE

secondary

#C2AA81

accent

#A54EDA

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3A66AE

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

Preview Lab → · Contrast checker → · Palette generator →