#3F689E#3F689E

#3F689E is a mid, moderate cyan. Relative luminance 0.134; OKLCH L 51.2% C 0.098 H 255.8°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#3F689E
RGB	rgb(63, 104, 158)
HSL	hsl(214, 43%, 43%)
HSV	hsv(214, 60%, 62%)
CMYK	cmyk(60.1%, 34.2%, 0%, 38%)
CIE-LAB	lab(43.40, 2.71, -33.59)
CIE-LCH	lch(43.40, 33.70, 274.61°)
OKLab	oklab(51.25% -0.024 -0.095)
OKLCH	oklch(51.25% 0.098 255.8)
XYZ	xyz(13.1696, 13.4249, 34.2384)
Luminance	0.1343 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F689E #9E753F

analogous

#3F979E #3F689E #453F9E

triadic

#3F689E #9E3F68 #689E3F

tetradic

#3F689E #9E3F97 #9E753F #3F9E45

square

#3F689E #9E3F97 #9E753F #3F9E45

split-complementary

#3F689E #9E453F #979E3F

monochromatic

#1C2E46 #2E4B72 #3F689E #5C86BE #88A7D0

Accessibility & contrast

On white

5.70

#3F689E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#3F689E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F689E

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F689E	#FFFFFF	#000000	##FFFFFF
##3F689E	1.00	5.70	3.69	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#516BA0

Deuteranopia (green-blind)

#45629D

Tritanopia (blue-blind)

#00747C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3f689e;
/* rgb */ color: rgb(63, 104, 158);
/* oklch */ color: oklch(51.2% 0.098 255.8);

Tailwind

colors: {
  custom: {
    50: '#7c92bb',
    500: '#3f689e',
    950: '#000000',
  },
}

SCSS

$custom: #3f689e;
$custom-light: #7c92bb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f689e",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 158
  },
  "hsl": {
    "h": 214.105,
    "s": 42.986,
    "l": 43.333
  },
  "oklch": {
    "l": 0.51248,
    "c": 0.09793,
    "h": 255.8
  },
  "luminance": 0.13426
}

Semantic roles & 50–950 ramp

primary

#3F689E

secondary

#BAA07F

accent

#9D55D3

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0D12

muted

#7C7D81

Preview Lab

Preview with #3F689E

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

Preview Lab → · Contrast checker → · Palette generator →