#3663A2#3663A2

#3663A2 is a mid, moderate blue. Relative luminance 0.123; OKLCH L 49.9% C 0.113 H 257.2°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#3663A2
RGB	rgb(54, 99, 162)
HSL	hsl(215, 50%, 42%)
HSV	hsv(215, 67%, 64%)
CMYK	cmyk(66.7%, 38.9%, 0%, 36.5%)
CIE-LAB	lab(41.71, 5.52, -38.65)
CIE-LCH	lch(41.71, 39.05, 278.13°)
OKLab	oklab(49.89% -0.0251 -0.1099)
OKLCH	oklch(49.89% 0.113 257.2)
XYZ	xyz(12.5024, 12.3154, 35.8936)
Luminance	0.1232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3663A2 #A27536

analogous

#3699A2 #3663A2 #3F36A2

triadic

#3663A2 #A23663 #63A236

tetradic

#3663A2 #A23699 #A27536 #36A23F

square

#3663A2 #A23699 #A27536 #36A23F

split-complementary

#3663A2 #A23F36 #99A236

monochromatic

#172B46 #274774 #3663A2 #5081C5 #7EA2D4

Accessibility & contrast

On white

6.06

#3663A2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#3663A2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3663A2

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3663A2	#FFFFFF	#000000	##FFFFFF
##3663A2	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4768A5

Deuteranopia (green-blind)

#375EA1

Tritanopia (blue-blind)

#00717A

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3663a2;
/* rgb */ color: rgb(54, 99, 162);
/* oklch */ color: oklch(49.9% 0.113 257.2);

Tailwind

colors: {
  custom: {
    50: '#798fbe',
    500: '#3663a2',
    950: '#000000',
  },
}

SCSS

$custom: #3663a2;
$custom-light: #798fbe;
$custom-dark: #000000;

JSON

{
  "hex": "#3663a2",
  "rgb": {
    "r": 54,
    "g": 99,
    "b": 162
  },
  "hsl": {
    "h": 215,
    "s": 50,
    "l": 42.353
  },
  "oklch": {
    "l": 0.49892,
    "c": 0.11275,
    "h": 257.2
  },
  "luminance": 0.12317
}

Semantic roles & 50–950 ramp

primary

#3663A2

secondary

#BDA077

accent

#A04EDA

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3663A2

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

Preview Lab → · Contrast checker → · Palette generator →