#3665AF#3665AF

#3665AF is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.2% C 0.128 H 259.2°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#3665AF
RGB	rgb(54, 101, 175)
HSL	hsl(217, 53%, 45%)
HSV	hsv(217, 69%, 69%)
CMYK	cmyk(69.1%, 42.3%, 0%, 31.4%)
CIE-LAB	lab(43.04, 9.00, -44.21)
CIE-LCH	lch(43.04, 45.12, 281.51°)
OKLab	oklab(51.16% -0.0242 -0.1262)
OKLCH	oklch(51.16% 0.128 259.2)
XYZ	xyz(13.9101, 13.1854, 42.3611)
Luminance	0.1319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3665AF #AF8036

analogous

#36A2AF #3665AF #4436AF

triadic

#3665AF #AF3665 #65AF36

tetradic

#3665AF #AF36A2 #AF8036 #36AF44

square

#3665AF #AF36A2 #AF8036 #36AF44

split-complementary

#3665AF #AF4436 #A2AF36

monochromatic

#192F51 #284A80 #3665AF #5784CB #86A6DA

Accessibility & contrast

On white

5.77

#3665AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#3665AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3665AF

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3665AF	#FFFFFF	#000000	##FFFFFF
##3665AF	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#426CB2

Deuteranopia (green-blind)

#2E60AD

Tritanopia (blue-blind)

#007681

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3665af;
/* rgb */ color: rgb(54, 101, 175);
/* oklch */ color: oklch(51.2% 0.128 259.2);

Tailwind

colors: {
  custom: {
    50: '#7b90c7',
    500: '#3665af',
    950: '#000000',
  },
}

SCSS

$custom: #3665af;
$custom-light: #7b90c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3665af",
  "rgb": {
    "r": 54,
    "g": 101,
    "b": 175
  },
  "hsl": {
    "h": 216.694,
    "s": 52.838,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51164,
    "c": 0.12848,
    "h": 259.2
  },
  "luminance": 0.13187
}

Semantic roles & 50–950 ramp

primary

#3665AF

secondary

#C3A87D

accent

#A44CDC

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3665AF

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

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