#3F659A#3F659A

#3F659A is a mid, moderate cyan. Relative luminance 0.127; OKLCH L 50.3% C 0.096 H 256.9°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F659A
RGB	rgb(63, 101, 154)
HSL	hsl(215, 42%, 43%)
HSV	hsv(215, 59%, 60%)
CMYK	cmyk(59.1%, 34.4%, 0%, 39.6%)
CIE-LAB	lab(42.30, 3.20, -32.94)
CIE-LCH	lch(42.30, 33.10, 275.55°)
OKLab	oklab(50.33% -0.0216 -0.0931)
OKLCH	oklch(50.33% 0.096 256.9)
XYZ	xyz(12.5343, 12.6961, 32.3557)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F659A #9A743F

analogous

#3F929A #3F659A #473F9A

triadic

#3F659A #9A3F65 #659A3F

tetradic

#3F659A #9A3F92 #9A743F #3F9A47

square

#3F659A #9A3F92 #9A743F #3F9A47

split-complementary

#3F659A #9A473F #929A3F

monochromatic

#1B2C43 #2D496F #3F659A #5A83BC #86A4CD

Accessibility & contrast

On white

5.93

#3F659A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#3F659A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F659A

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F659A	#FFFFFF	#000000	##FFFFFF
##3F659A	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F699C

Deuteranopia (green-blind)

#436099

Tritanopia (blue-blind)

#007178

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f659a;
/* rgb */ color: rgb(63, 101, 154);
/* oklch */ color: oklch(50.3% 0.096 256.9);

Tailwind

colors: {
  custom: {
    50: '#7c90b8',
    500: '#3f659a',
    950: '#000000',
  },
}

SCSS

$custom: #3f659a;
$custom-light: #7c90b8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f659a",
  "rgb": {
    "r": 63,
    "g": 101,
    "b": 154
  },
  "hsl": {
    "h": 214.945,
    "s": 41.935,
    "l": 42.549
  },
  "oklch": {
    "l": 0.50327,
    "c": 0.09556,
    "h": 256.9
  },
  "luminance": 0.12697
}

Semantic roles & 50–950 ramp

primary

#3F659A

secondary

#B89F7D

accent

#9E56D2

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0C11

muted

#7C7D80

Preview Lab

Preview with #3F659A

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

Preview Lab → · Contrast checker → · Palette generator →