#3F688C#3F688C

#3F688C is a mid, moderate cyan. Relative luminance 0.129; OKLCH L 50.3% C 0.074 H 246.4°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#3F688C
RGB	rgb(63, 104, 140)
HSL	hsl(208, 38%, 40%)
HSV	hsv(208, 55%, 55%)
CMYK	cmyk(55%, 25.7%, 0%, 45.1%)
CIE-LAB	lab(42.54, -3.36, -24.21)
CIE-LCH	lch(42.54, 24.44, 262.10°)
OKLab	oklab(50.29% -0.0296 -0.0678)
OKLCH	oklch(50.29% 0.074 246.4)
XYZ	xyz(11.7321, 12.8499, 26.6679)
Luminance	0.1285 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F688C #8C633F

analogous

#3F8C8A #3F688C #3F428C

triadic

#3F688C #8C3F68 #688C3F

tetradic

#3F688C #8A3F8C #8C633F #428C3F

square

#3F688C #8A3F8C #8C633F #428C3F

split-complementary

#3F688C #8C3F42 #8C8A3F

monochromatic

#192938 #2C4962 #3F688C #5587B3 #80A5C6

Accessibility & contrast

On white

5.88

#3F688C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#3F688C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F688C

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F688C	#FFFFFF	#000000	##FFFFFF
##3F688C	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59698E

Deuteranopia (green-blind)

#4F618B

Tritanopia (blue-blind)

#0F7174

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f688c;
/* rgb */ color: rgb(63, 104, 140);
/* oklch */ color: oklch(50.3% 0.074 246.4);

Tailwind

colors: {
  custom: {
    50: '#7a93ad',
    500: '#3f688c',
    950: '#000000',
  },
}

SCSS

$custom: #3f688c;
$custom-light: #7a93ad;
$custom-dark: #000000;

JSON

{
  "hex": "#3f688c",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 140
  },
  "hsl": {
    "h": 208.052,
    "s": 37.931,
    "l": 39.804
  },
  "oklch": {
    "l": 0.5029,
    "c": 0.07394,
    "h": 246.4
  },
  "luminance": 0.12851
}

Semantic roles & 50–950 ramp

primary

#3F688C

secondary

#B09277

accent

#905ACE

background

#F7F9FA

surface

#EEF1F4

border

#C9CBCE

text

#090D10

muted

#7B7E7F

Preview Lab

Preview with #3F688C

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

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