#3659BF#3659BF

#3659BF is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.7% C 0.165 H 266.2°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#3659BF
RGB	rgb(54, 89, 191)
HSL	hsl(225, 56%, 48%)
HSV	hsv(225, 72%, 75%)
CMYK	cmyk(71.7%, 53.4%, 0%, 25.1%)
CIE-LAB	lab(40.72, 22.66, -57.30)
CIE-LCH	lch(40.72, 61.62, 291.57°)
OKLab	oklab(49.72% -0.011 -0.1649)
OKLCH	oklch(49.72% 0.165 266.2)
XYZ	xyz(14.4944, 11.6891, 50.7725)
Luminance	0.1169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3659BF #BF9C36

analogous

#369DBF #3659BF #5836BF

triadic

#3659BF #BF3659 #59BF36

tetradic

#3659BF #BF369D #BF9C36 #36BF58

square

#3659BF #BF369D #BF9C36 #36BF58

split-complementary

#3659BF #BF5836 #9DBF36

monochromatic

#1B2D60 #29438F #3659BF #607DD2 #90A4E0

Accessibility & contrast

On white

6.29

#3659BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#3659BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3659BF

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3659BF	#FFFFFF	#000000	##FFFFFF
##3659BF	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D67C3

Deuteranopia (green-blind)

#005ABD

Tritanopia (blue-blind)

#007283

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3659bf;
/* rgb */ color: rgb(54, 89, 191);
/* oklch */ color: oklch(49.7% 0.165 266.2);

Tailwind

colors: {
  custom: {
    50: '#7f87d3',
    500: '#3659bf',
    950: '#000000',
  },
}

SCSS

$custom: #3659bf;
$custom-light: #7f87d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3659bf",
  "rgb": {
    "r": 54,
    "g": 89,
    "b": 191
  },
  "hsl": {
    "h": 224.672,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.49718,
    "c": 0.16527,
    "h": 266.2
  },
  "luminance": 0.11691
}

Semantic roles & 50–950 ramp

primary

#3659BF

secondary

#CAB987

accent

#B949DF

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3659BF

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

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