#3A66AF#3A66AF

#3A66AF is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.6% C 0.126 H 260.0°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#3A66AF
RGB	rgb(58, 102, 175)
HSL	hsl(217, 50%, 46%)
HSV	hsv(217, 67%, 69%)
CMYK	cmyk(66.9%, 41.7%, 0%, 31.4%)
CIE-LAB	lab(43.50, 9.03, -43.47)
CIE-LCH	lch(43.50, 44.39, 281.74°)
OKLab	oklab(51.57% -0.0219 -0.1239)
OKLCH	oklch(51.57% 0.126 260)
XYZ	xyz(14.2314, 13.4960, 42.4041)
Luminance	0.1350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A66AF #AF833A

analogous

#3AA0AF #3A66AF #483AAF

triadic

#3A66AF #AF3A66 #66AF3A

tetradic

#3A66AF #AF3AA0 #AF833A #3AAF48

square

#3A66AF #AF3AA0 #AF833A #3AAF48

split-complementary

#3A66AF #AF483A #A0AF3A

monochromatic

#1C3053 #2B4B81 #3A66AF #5D86C9 #8BA8D9

Accessibility & contrast

On white

5.68

#3A66AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#3A66AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A66AF

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A66AF	#FFFFFF	#000000	##FFFFFF
##3A66AF	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#446DB2

Deuteranopia (green-blind)

#3262AD

Tritanopia (blue-blind)

#007782

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3a66af;
/* rgb */ color: rgb(58, 102, 175);
/* oklch */ color: oklch(51.6% 0.126 260.0);

Tailwind

colors: {
  custom: {
    50: '#7d91c7',
    500: '#3a66af',
    950: '#000000',
  },
}

SCSS

$custom: #3a66af;
$custom-light: #7d91c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3a66af",
  "rgb": {
    "r": 58,
    "g": 102,
    "b": 175
  },
  "hsl": {
    "h": 217.436,
    "s": 50.215,
    "l": 45.686
  },
  "oklch": {
    "l": 0.51567,
    "c": 0.12585,
    "h": 260
  },
  "luminance": 0.13497
}

Semantic roles & 50–950 ramp

primary

#3A66AF

secondary

#C3AA82

accent

#A54EDA

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3A66AF

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

Preview Lab → · Contrast checker → · Palette generator →