#3F6D8A#3F6D8A

#3F6D8A is a mid, moderate cyan. Relative luminance 0.138; OKLCH L 51.4% C 0.068 H 237.8°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#3F6D8A
RGB	rgb(63, 109, 138)
HSL	hsl(203, 37%, 39%)
HSV	hsv(203, 54%, 54%)
CMYK	cmyk(54.3%, 21%, 0%, 45.9%)
CIE-LAB	lab(43.99, -7.00, -20.77)
CIE-LCH	lch(43.99, 21.92, 251.38°)
OKLab	oklab(51.41% -0.0365 -0.0579)
OKLCH	oklch(51.41% 0.068 237.8)
XYZ	xyz(12.1043, 13.8280, 26.0710)
Luminance	0.1383 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6D8A #8A5C3F

analogous

#3F8A82 #3F6D8A #3F488A

triadic

#3F6D8A #8A3F6D #6D8A3F

tetradic

#3F6D8A #823F8A #8A5C3F #488A3F

square

#3F6D8A #823F8A #8A5C3F #488A3F

split-complementary

#3F6D8A #8A3F48 #8A823F

monochromatic

#192B36 #2C4C60 #3F6D8A #558EB1 #7FAAC5

Accessibility & contrast

On white

5.58

#3F6D8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#3F6D8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6D8A

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6D8A	#FFFFFF	#000000	##FFFFFF
##3F6D8A	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#606C8B

Deuteranopia (green-blind)

#55658A

Tritanopia (blue-blind)

#107477

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3f6d8a;
/* rgb */ color: rgb(63, 109, 138);
/* oklch */ color: oklch(51.4% 0.068 237.8);

Tailwind

colors: {
  custom: {
    50: '#7a96ac',
    500: '#3f6d8a',
    950: '#000000',
  },
}

SCSS

$custom: #3f6d8a;
$custom-light: #7a96ac;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6d8a",
  "rgb": {
    "r": 63,
    "g": 109,
    "b": 138
  },
  "hsl": {
    "h": 203.2,
    "s": 37.313,
    "l": 39.412
  },
  "oklch": {
    "l": 0.51407,
    "c": 0.06843,
    "h": 237.8
  },
  "luminance": 0.13829
}

Semantic roles & 50–950 ramp

primary

#3F6D8A

secondary

#AF8C76

accent

#875BCD

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#090D10

muted

#7B7E7F

Preview Lab

Preview with #3F6D8A

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

Preview Lab → · Contrast checker → · Palette generator →