#3F689D#3F689D

#3F689D is a mid, moderate cyan. Relative luminance 0.134; OKLCH L 51.2% C 0.097 H 255.5°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#3F689D
RGB	rgb(63, 104, 157)
HSL	hsl(214, 43%, 43%)
HSV	hsv(214, 60%, 62%)
CMYK	cmyk(59.9%, 33.8%, 0%, 38.4%)
CIE-LAB	lab(43.35, 2.37, -33.08)
CIE-LCH	lch(43.35, 33.17, 274.09°)
OKLab	oklab(51.19% -0.0242 -0.0935)
OKLCH	oklch(51.19% 0.097 255.5)
XYZ	xyz(13.0839, 13.3906, 33.7869)
Luminance	0.1339 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F689D #9D743F

analogous

#3F979D #3F689D #453F9D

triadic

#3F689D #9D3F68 #689D3F

tetradic

#3F689D #9D3F97 #9D743F #3F9D45

square

#3F689D #9D3F97 #9D743F #3F9D45

split-complementary

#3F689D #9D453F #979D3F

monochromatic

#1C2E46 #2D4B71 #3F689D #5C86BD #87A7CF

Accessibility & contrast

On white

5.71

#3F689D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#3F689D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F689D

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F689D	#FFFFFF	#000000	##FFFFFF
##3F689D	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#526B9F

Deuteranopia (green-blind)

#46629C

Tritanopia (blue-blind)

#00747B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3f689d;
/* rgb */ color: rgb(63, 104, 157);
/* oklch */ color: oklch(51.2% 0.097 255.5);

Tailwind

colors: {
  custom: {
    50: '#7c92ba',
    500: '#3f689d',
    950: '#000000',
  },
}

SCSS

$custom: #3f689d;
$custom-light: #7c92ba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f689d",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 157
  },
  "hsl": {
    "h": 213.83,
    "s": 42.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.51192,
    "c": 0.09655,
    "h": 255.5
  },
  "luminance": 0.13392
}

Semantic roles & 50–950 ramp

primary

#3F689D

secondary

#BAA07E

accent

#9C55D3

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0D11

muted

#7C7D80

Preview Lab

Preview with #3F689D

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

Preview Lab → · Contrast checker → · Palette generator →