#1F5577#1F5577

#1F5577 is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.0% C 0.080 H 240.1°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX#1F5577
RGBrgb(31, 85, 119)
HSLhsl(203, 59%, 29%)
HSVhsv(203, 74%, 47%)
CMYKcmyk(73.9%, 28.6%, 0%, 53.3%)
CIE-LABlab(34.23, -5.52, -24.45)
CIE-LCHlch(34.23, 25.06, 257.28°)
OKLaboklab(43.03% -0.0397 -0.069)
OKLCHoklch(43.03% 0.08 240.1)
XYZxyz(7.1421, 8.1194, 18.6400)
Luminance0.0812 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1F5577 #77411F
analogous
#1F776D #1F5577 #1F2977
triadic
#1F5577 #771F55 #55771F
tetradic
#1F5577 #6D1F77 #77411F #29771F
square
#1F5577 #6D1F77 #77411F #29771F
split-complementary
#1F5577 #771F29 #776D1F
monochromatic
#061118 #123246 #1F5577 #2C78A8 #4398CE

Accessibility & contrast

On white

8.00
#1F5577 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.62
#1F5577 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5577
8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1F5577#FFFFFF#000000##FFFFFF
##1F55771.008.002.628.00
#FFFFFF8.001.0021.001.00
#0000002.6221.001.0021.00
##FFFFFF8.001.0021.001.00

Color blindness preview

Protanopia (red-blind)
#455579
Deuteranopia (green-blind)
#394D76
Tritanopia (blue-blind)
#005E61
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #1f5577;
/* rgb */ color: rgb(31, 85, 119);
/* oklch */ color: oklch(43.0% 0.080 240.1);
Tailwind
colors: {
  custom: {
    50: '#67849e',
    500: '#1f5577',
    950: '#000000',
  },
}
SCSS
$custom: #1f5577;
$custom-light: #67849e;
$custom-dark: #000000;
JSON
{
  "hex": "#1f5577",
  "rgb": {
    "r": 31,
    "g": 85,
    "b": 119
  },
  "hsl": {
    "h": 203.182,
    "s": 58.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.43032,
    "c": 0.07957,
    "h": 240.1
  },
  "luminance": 0.0812
}

Semantic roles & 50–950 ramp

primary
#1F5577
secondary
#AB6E47
accent
#8246E2
background
#F6F8F9
surface
#EBEFF2
border
#C6CACC
text
#070B0E
muted
#7A7C7E

Preview Lab

Preview with #1F5577

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

Preview Lab → · Contrast checker → · Palette generator →

#1F5577 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva