#3F689C#3F689C

#3F689C is a mid, moderate cyan. Relative luminance 0.134; OKLCH L 51.1% C 0.095 H 255.1°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F689C
RGB	rgb(63, 104, 156)
HSL	hsl(214, 42%, 43%)
HSV	hsv(214, 60%, 61%)
CMYK	cmyk(59.6%, 33.3%, 0%, 38.8%)
CIE-LAB	lab(43.30, 2.02, -32.57)
CIE-LCH	lch(43.30, 32.63, 273.55°)
OKLab	oklab(51.14% -0.0245 -0.092)
OKLCH	oklch(51.14% 0.095 255.1)
XYZ	xyz(12.9988, 13.3566, 33.3391)
Luminance	0.1336 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F689C #9C733F

analogous

#3F979C #3F689C #443F9C

triadic

#3F689C #9C3F68 #689C3F

tetradic

#3F689C #9C3F97 #9C733F #3F9C44

square

#3F689C #9C3F97 #9C733F #3F9C44

split-complementary

#3F689C #9C443F #979C3F

monochromatic

#1C2E45 #2D4B70 #3F689C #5B86BD #87A6CE

Accessibility & contrast

On white

5.72

#3F689C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#3F689C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F689C

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F689C	#FFFFFF	#000000	##FFFFFF
##3F689C	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#526B9E

Deuteranopia (green-blind)

#46629B

Tritanopia (blue-blind)

#00747B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3f689c;
/* rgb */ color: rgb(63, 104, 156);
/* oklch */ color: oklch(51.1% 0.095 255.1);

Tailwind

colors: {
  custom: {
    50: '#7c92b9',
    500: '#3f689c',
    950: '#000000',
  },
}

SCSS

$custom: #3f689c;
$custom-light: #7c92b9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f689c",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 156
  },
  "hsl": {
    "h": 213.548,
    "s": 42.466,
    "l": 42.941
  },
  "oklch": {
    "l": 0.51137,
    "c": 0.09518,
    "h": 255.1
  },
  "luminance": 0.13358
}

Semantic roles & 50–950 ramp

primary

#3F689C

secondary

#B99F7E

accent

#9B56D2

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0D11

muted

#7C7D80

Preview Lab

Preview with #3F689C

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

Preview Lab → · Contrast checker → · Palette generator →