#1A558D#1A558D

#1A558D is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 44.2% C 0.110 H 251.0°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX#1A558D
RGBrgb(26, 85, 141)
HSLhsl(209, 69%, 33%)
HSVhsv(209, 82%, 55%)
CMYKcmyk(81.6%, 39.7%, 0%, 44.7%)
CIE-LABlab(35.28, 2.39, -36.32)
CIE-LCHlch(35.28, 36.40, 273.77°)
OKLaboklab(44.21% -0.0358 -0.1037)
OKLCHoklch(44.21% 0.11 251)
XYZxyz(8.4804, 8.6387, 26.4146)
Luminance0.0864 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1A558D #8D521A
analogous
#1A8D8B #1A558D #1A1C8D
triadic
#1A558D #8D1A55 #558D1A
tetradic
#1A558D #8B1A8D #8D521A #1C8D1A
square
#1A558D #8B1A8D #8D521A #1C8D1A
split-complementary
#1A558D #8D1A1C #8D8B1A
monochromatic
#071726 #103659 #1A558D #2474C1 #4593DD

Accessibility & contrast

On white

7.70
#1A558D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.73
#1A558D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A558D
7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1A558D#FFFFFF#000000##FFFFFF
##1A558D1.007.702.737.70
#FFFFFF7.701.0021.001.00
#0000002.7321.001.0021.00
##FFFFFF7.701.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3A598F
Deuteranopia (green-blind)
#284E8C
Tritanopia (blue-blind)
#00626A
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #1a558d;
/* rgb */ color: rgb(26, 85, 141);
/* oklch */ color: oklch(44.2% 0.110 251.0);
Tailwind
colors: {
  custom: {
    50: '#6a84af',
    500: '#1a558d',
    950: '#000000',
  },
}
SCSS
$custom: #1a558d;
$custom-light: #6a84af;
$custom-dark: #000000;
JSON
{
  "hex": "#1a558d",
  "rgb": {
    "r": 26,
    "g": 85,
    "b": 141
  },
  "hsl": {
    "h": 209.217,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.44207,
    "c": 0.1097,
    "h": 251
  },
  "luminance": 0.0864
}

Semantic roles & 50–950 ramp

primary
#1A558D
secondary
#BE8045
accent
#923CEC
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070A10
muted
#7A7C7F

Preview Lab

Preview with #1A558D

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

Preview Lab → · Contrast checker → · Palette generator →

#1A558D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva