#3659DA#3659DA

#3659DA is a mid, highly saturated blue. Relative luminance 0.130; OKLCH L 51.9% C 0.201 H 267.2°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#3659DA
RGB	rgb(54, 89, 218)
HSL	hsl(227, 69%, 53%)
HSV	hsv(227, 75%, 85%)
CMYK	cmyk(75.2%, 59.2%, 0%, 14.5%)
CIE-LAB	lab(42.75, 32.55, -69.57)
CIE-LCH	lch(42.75, 76.81, 295.07°)
OKLab	oklab(51.88% -0.0097 -0.201)
OKLCH	oklch(51.88% 0.201 267.2)
XYZ	xyz(17.7442, 12.9890, 67.8880)
Luminance	0.1299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659DA #DAB736

analogous

#36ABDA #3659DA #6536DA

triadic

#3659DA #DA3659 #59DA36

tetradic

#3659DA #DA36AB #DAB736 #36DA65

square

#3659DA #DA36AB #DAB736 #36DA65

split-complementary

#3659DA #DA6536 #ABDA36

monochromatic

#172D7E #2140B2 #3659DA #6A84E4 #9DAEED

Accessibility & contrast

On white

5.84

#3659DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#3659DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659DA

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659DA	#FFFFFF	#000000	##FFFFFF
##3659DA	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DDE

Deuteranopia (green-blind)

#005ED8

Tritanopia (blue-blind)

#007A91

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3659da;
/* rgb */ color: rgb(54, 89, 218);
/* oklch */ color: oklch(51.9% 0.201 267.2);

Tailwind

colors: {
  custom: {
    50: '#8587e6',
    500: '#3659da',
    950: '#000000',
  },
}

SCSS

$custom: #3659da;
$custom-light: #8587e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3659da",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 218
  },
  "hsl": {
    "h": 227.195,
    "s": 68.908,
    "l": 53.333
  },
  "oklch": {
    "l": 0.51878,
    "c": 0.2012,
    "h": 267.2
  },
  "luminance": 0.12991
}

Semantic roles & 50–950 ramp

primary

#3659DA

secondary

#D9CA93

accent

#C63CEC

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3659DA

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

Preview Lab → · Contrast checker → · Palette generator →