#3658AC#3658AC

#3658AC is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.1% C 0.140 H 265.0°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#3658AC
RGB	rgb(54, 88, 172)
HSL	hsl(223, 52%, 44%)
HSV	hsv(223, 69%, 67%)
CMYK	cmyk(68.6%, 48.8%, 0%, 32.5%)
CIE-LAB	lab(39.14, 16.29, -48.69)
CIE-LCH	lch(39.14, 51.34, 288.49°)
OKLab	oklab(48.11% -0.0122 -0.1396)
OKLCH	oklch(48.11% 0.14 265)
XYZ	xyz(12.4548, 10.7410, 40.4386)
Luminance	0.1074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3658AC #AC8A36

analogous

#3693AC #3658AC #4F36AC

triadic

#3658AC #AC3658 #58AC36

tetradic

#3658AC #AC3693 #AC8A36 #36AC4F

square

#3658AC #AC3693 #AC8A36 #36AC4F

split-complementary

#3658AC #AC4F36 #93AC36

monochromatic

#19284F #27407D #3658AC #5577CA #849CD8

Accessibility & contrast

On white

6.67

#3658AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3658AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3658AC

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3658AC	#FFFFFF	#000000	##FFFFFF
##3658AC	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B62AF

Deuteranopia (green-blind)

#0B57AA

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3658ac;
/* rgb */ color: rgb(54, 88, 172);
/* oklch */ color: oklch(48.1% 0.140 265.0);

Tailwind

colors: {
  custom: {
    50: '#7b86c5',
    500: '#3658ac',
    950: '#000000',
  },
}

SCSS

$custom: #3658ac;
$custom-light: #7b86c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3658ac",
  "rgb": {
    "r": 54,
    "g": 88,
    "b": 172
  },
  "hsl": {
    "h": 222.712,
    "s": 52.212,
    "l": 44.314
  },
  "oklch": {
    "l": 0.48105,
    "c": 0.14011,
    "h": 265
  },
  "luminance": 0.10742
}

Semantic roles & 50–950 ramp

primary

#3658AC

secondary

#C2AE7C

accent

#B24CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3658AC

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

Preview Lab → · Contrast checker → · Palette generator →