#1F688A#1F688A

#1F688A is a mid, moderate cyan. Relative luminance 0.120; OKLCH L 48.9% C 0.088 H 233.3°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX#1F688A
RGBrgb(31, 104, 138)
HSLhsl(199, 63%, 33%)
HSVhsv(199, 78%, 54%)
CMYKcmyk(77.5%, 24.6%, 0%, 45.9%)
CIE-LABlab(41.26, -9.96, -25.09)
CIE-LCHlch(41.26, 26.99, 248.34°)
OKLaboklab(48.92% -0.0527 -0.0706)
OKLCHoklch(48.92% 0.088 233.3)
XYZxyz(10.1010, 12.0257, 25.8287)
Luminance0.1203 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1F688A #8A411F
analogous
#1F8A76 #1F688A #1F338A
triadic
#1F688A #8A1F68 #688A1F
tetradic
#1F688A #761F8A #8A411F #338A1F
square
#1F688A #761F8A #8A411F #338A1F
split-complementary
#1F688A #8A1F33 #8A761F
monochromatic
#091D26 #144258 #1F688A #2A8EBC #4CABD7

Accessibility & contrast

On white

6.17
#1F688A on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.41
#1F688A on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F688A
6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1F688A#FFFFFF#000000##FFFFFF
##1F688A1.006.173.416.17
#FFFFFF6.171.0021.001.00
#0000003.4121.001.0021.00
##FFFFFF6.171.0021.001.00

Color blindness preview

Protanopia (red-blind)
#57678C
Deuteranopia (green-blind)
#495D89
Tritanopia (blue-blind)
#007173
Achromatopsia (no color)
#616161

Design tokens & code

CSS
--color: #1f688a;
/* rgb */ color: rgb(31, 104, 138);
/* oklch */ color: oklch(48.9% 0.088 233.3);
Tailwind
colors: {
  custom: {
    50: '#6b93ac',
    500: '#1f688a',
    950: '#000000',
  },
}
SCSS
$custom: #1f688a;
$custom-light: #6b93ac;
$custom-dark: #000000;
JSON
{
  "hex": "#1f688a",
  "rgb": {
    "r": 31,
    "g": 104,
    "b": 138
  },
  "hsl": {
    "h": 199.065,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.48916,
    "c": 0.08815,
    "h": 233.3
  },
  "luminance": 0.12027
}

Semantic roles & 50–950 ramp

primary
#1F688A
secondary
#BA6E4B
accent
#7641E6
background
#F6F9FA
surface
#ECF1F4
border
#C7CBCE
text
#080D10
muted
#7A7E7F

Preview Lab

Preview with #1F688A

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

Preview Lab → · Contrast checker → · Palette generator →

#1F688A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva