#1F4355#1F4355

#1F4355 is a dark, muted cyan. Relative luminance 0.050; OKLCH L 36.5% C 0.052 H 232.4°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX#1F4355
RGBrgb(31, 67, 85)
HSLhsl(200, 47%, 23%)
HSVhsv(200, 64%, 33%)
CMYKcmyk(63.5%, 21.2%, 0%, 66.7%)
CIE-LABlab(26.62, -6.79, -14.68)
CIE-LCHlch(26.62, 16.18, 245.16°)
OKLaboklab(36.46% -0.0316 -0.041)
OKLCHoklch(36.46% 0.052 232.4)
XYZxyz(4.2113, 4.9611, 9.3282)
Luminance0.0496 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1F4355 #55311F
analogous
#1F554C #1F4355 #1F2855
triadic
#1F4355 #551F43 #43551F
tetradic
#1F4355 #4C1F55 #55311F #28551F
square
#1F4355 #4C1F55 #55311F #28551F
split-complementary
#1F4355 #551F28 #554C1F
monochromatic
#081216 #0F2028 #1F4355 #2F6682 #408AAF

Accessibility & contrast

On white

10.54
#1F4355 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.99
#1F4355 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4355
10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1F4355#FFFFFF#000000##FFFFFF
##1F43551.0010.541.9910.54
#FFFFFF10.541.0021.001.00
#0000001.9921.001.0021.00
##FFFFFF10.541.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3A4256
Deuteranopia (green-blind)
#333C55
Tritanopia (blue-blind)
#004849
Achromatopsia (no color)
#3F3F3F

Design tokens & code

CSS
--color: #1f4355;
/* rgb */ color: rgb(31, 67, 85);
/* oklch */ color: oklch(36.5% 0.052 232.4);
Tailwind
colors: {
  custom: {
    50: '#607785',
    500: '#1f4355',
    950: '#000000',
  },
}
SCSS
$custom: #1f4355;
$custom-light: #607785;
$custom-dark: #000000;
JSON
{
  "hex": "#1f4355",
  "rgb": {
    "r": 31,
    "g": 67,
    "b": 85
  },
  "hsl": {
    "h": 200,
    "s": 46.552,
    "l": 22.745
  },
  "oklch": {
    "l": 0.36457,
    "c": 0.05174,
    "h": 232.4
  },
  "luminance": 0.04961
}

Semantic roles & 50–950 ramp

primary
#1F4355
secondary
#8A5D46
accent
#7E52D6
background
#F5F7F8
surface
#EAEDEF
border
#C6C8CA
text
#05080B
muted
#797B7C

Preview Lab

Preview with #1F4355

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

Preview Lab → · Contrast checker → · Palette generator →

#1F4355 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva