#1A588C#1A588C

#1A588C is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.9% C 0.105 H 248.3°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX#1A588C
RGBrgb(26, 88, 140)
HSLhsl(207, 69%, 33%)
HSVhsv(207, 81%, 55%)
CMYKcmyk(81.4%, 37.1%, 0%, 45.1%)
CIE-LABlab(36.16, 0.05, -34.32)
CIE-LCHlch(36.16, 34.32, 270.09°)
OKLaboklab(44.88% -0.0388 -0.0978)
OKLCHoklch(44.88% 0.105 248.3)
XYZxyz(8.6475, 9.0915, 26.1049)
Luminance0.0909 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1A588C #8C4E1A
analogous
#1A8C87 #1A588C #1A1F8C
triadic
#1A588C #8C1A58 #588C1A
tetradic
#1A588C #871A8C #8C4E1A #1F8C1A
square
#1A588C #871A8C #8C4E1A #1F8C1A
split-complementary
#1A588C #8C1A1F #8C871A
monochromatic
#071725 #103858 #1A588C #2478C0 #4497DC

Accessibility & contrast

On white

7.45
#1A588C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.82
#1A588C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A588C
7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1A588C#FFFFFF#000000##FFFFFF
##1A588C1.007.452.827.45
#FFFFFF7.451.0021.001.00
#0000002.8221.001.0021.00
##FFFFFF7.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#405B8E
Deuteranopia (green-blind)
#2F508B
Tritanopia (blue-blind)
#00646B
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #1a588c;
/* rgb */ color: rgb(26, 88, 140);
/* oklch */ color: oklch(44.9% 0.105 248.3);
Tailwind
colors: {
  custom: {
    50: '#6a86ae',
    500: '#1a588c',
    950: '#000000',
  },
}
SCSS
$custom: #1a588c;
$custom-light: #6a86ae;
$custom-dark: #000000;
JSON
{
  "hex": "#1a588c",
  "rgb": {
    "r": 26,
    "g": 88,
    "b": 140
  },
  "hsl": {
    "h": 207.368,
    "s": 68.675,
    "l": 32.549
  },
  "oklch": {
    "l": 0.44878,
    "c": 0.10519,
    "h": 248.3
  },
  "luminance": 0.09093
}

Semantic roles & 50–950 ramp

primary
#1A588C
secondary
#BE7C44
accent
#8C3CEC
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070B10
muted
#7A7C7F

Preview Lab

Preview with #1A588C

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

Preview Lab → · Contrast checker → · Palette generator →

#1A588C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva