#3F658F#3F658F

#3F658F is a mid, moderate cyan. Relative luminance 0.123; OKLCH L 49.7% C 0.080 H 252.0°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F658F
RGB	rgb(63, 101, 143)
HSL	hsl(212, 39%, 40%)
HSV	hsv(212, 56%, 56%)
CMYK	cmyk(55.9%, 29.4%, 0%, 43.9%)
CIE-LAB	lab(41.76, -0.53, -27.21)
CIE-LCH	lch(41.76, 27.22, 268.88°)
OKLab	oklab(49.73% -0.0249 -0.0764)
OKLCH	oklch(49.73% 0.08 252)
XYZ	xyz(11.6598, 12.3463, 27.7499)
Luminance	0.1235 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F658F #8F693F

analogous

#3F8D8F #3F658F #413F8F

triadic

#3F658F #8F3F65 #658F3F

tetradic

#3F658F #8F3F8D #8F693F #3F8F41

square

#3F658F #8F3F8D #8F693F #3F8F41

split-complementary

#3F658F #8F413F #8D8F3F

monochromatic

#1A293A #2C4765 #3F658F #5683B5 #81A2C7

Accessibility & contrast

On white

6.05

#3F658F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#3F658F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F658F

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F658F	#FFFFFF	#000000	##FFFFFF
##3F658F	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#546791

Deuteranopia (green-blind)

#4A5F8E

Tritanopia (blue-blind)

#0B6F74

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3f658f;
/* rgb */ color: rgb(63, 101, 143);
/* oklch */ color: oklch(49.7% 0.080 252.0);

Tailwind

colors: {
  custom: {
    50: '#7a90b0',
    500: '#3f658f',
    950: '#000000',
  },
}

SCSS

$custom: #3f658f;
$custom-light: #7a90b0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f658f",
  "rgb": {
    "r": 63,
    "g": 101,
    "b": 143
  },
  "hsl": {
    "h": 211.5,
    "s": 38.835,
    "l": 40.392
  },
  "oklch": {
    "l": 0.49727,
    "c": 0.08041,
    "h": 252
  },
  "luminance": 0.12347
}

Semantic roles & 50–950 ramp

primary

#3F658F

secondary

#B29678

accent

#9759CF

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#0A0C10

muted

#7C7D7F

Preview Lab

Preview with #3F658F

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

Preview Lab → · Contrast checker → · Palette generator →