#3665A4#3665A4

#3665A4 is a mid, moderate cyan. Relative luminance 0.128; OKLCH L 50.5% C 0.113 H 256.4°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#3665A4
RGB	rgb(54, 101, 164)
HSL	hsl(214, 50%, 43%)
HSV	hsv(214, 67%, 64%)
CMYK	cmyk(67.1%, 38.4%, 0%, 35.7%)
CIE-LAB	lab(42.42, 4.98, -38.72)
CIE-LCH	lch(42.42, 39.04, 277.33°)
OKLab	oklab(50.48% -0.0267 -0.1101)
OKLCH	oklch(50.48% 0.113 256.4)
XYZ	xyz(12.8734, 12.7707, 36.9013)
Luminance	0.1277 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3665A4 #A47536

analogous

#369CA4 #3665A4 #3E36A4

triadic

#3665A4 #A43665 #65A436

tetradic

#3665A4 #A4369C #A47536 #36A43E

square

#3665A4 #A4369C #A47536 #36A43E

split-complementary

#3665A4 #A43E36 #9CA436

monochromatic

#182C48 #274976 #3665A4 #5183C6 #7FA4D5

Accessibility & contrast

On white

5.91

#3665A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#3665A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3665A4

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3665A4	#FFFFFF	#000000	##FFFFFF
##3665A4	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#496AA7

Deuteranopia (green-blind)

#395FA3

Tritanopia (blue-blind)

#00737C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3665a4;
/* rgb */ color: rgb(54, 101, 164);
/* oklch */ color: oklch(50.5% 0.113 256.4);

Tailwind

colors: {
  custom: {
    50: '#7990bf',
    500: '#3665a4',
    950: '#000000',
  },
}

SCSS

$custom: #3665a4;
$custom-light: #7990bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3665a4",
  "rgb": {
    "r": 54,
    "g": 101,
    "b": 164
  },
  "hsl": {
    "h": 214.364,
    "s": 50.459,
    "l": 42.745
  },
  "oklch": {
    "l": 0.50475,
    "c": 0.11329,
    "h": 256.4
  },
  "luminance": 0.12772
}

Semantic roles & 50–950 ramp

primary

#3665A4

secondary

#BEA078

accent

#9E4EDA

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3665A4

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

Preview Lab → · Contrast checker → · Palette generator →