#3659C7#3659C7

#3659C7 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.3% C 0.176 H 266.6°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#3659C7
RGB	rgb(54, 89, 199)
HSL	hsl(226, 57%, 50%)
HSV	hsv(226, 73%, 78%)
CMYK	cmyk(72.9%, 55.3%, 0%, 22%)
CIE-LAB	lab(41.30, 25.61, -61.01)
CIE-LCH	lch(41.30, 66.17, 292.77°)
OKLab	oklab(50.34% -0.0104 -0.1758)
OKLCH	oklch(50.34% 0.176 266.6)
XYZ	xyz(15.3989, 12.0509, 55.5363)
Luminance	0.1205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659C7 #C7A436

analogous

#36A2C7 #3659C7 #5B36C7

triadic

#3659C7 #C73659 #59C736

tetradic

#3659C7 #C736A2 #C7A436 #36C75B

square

#3659C7 #C736A2 #C7A436 #36C75B

split-complementary

#3659C7 #C75B36 #A2C736

monochromatic

#1C2E67 #294397 #3659C7 #6580D5 #95A8E2

Accessibility & contrast

On white

6.16

#3659C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#3659C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659C7

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659C7	#FFFFFF	#000000	##FFFFFF
##3659C7	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CB

Deuteranopia (green-blind)

#005BC5

Tritanopia (blue-blind)

#007487

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3659c7;
/* rgb */ color: rgb(54, 89, 199);
/* oklch */ color: oklch(50.3% 0.176 266.6);

Tailwind

colors: {
  custom: {
    50: '#8087d9',
    500: '#3659c7',
    950: '#000000',
  },
}

SCSS

$custom: #3659c7;
$custom-light: #8087d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3659c7",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 199
  },
  "hsl": {
    "h": 225.517,
    "s": 57.312,
    "l": 49.608
  },
  "oklch": {
    "l": 0.50338,
    "c": 0.17611,
    "h": 266.6
  },
  "luminance": 0.12053
}

Semantic roles & 50–950 ramp

primary

#3659C7

secondary

#CEBE8B

accent

#BC47E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3659C7

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

Preview Lab → · Contrast checker → · Palette generator →