#1C518B#1C518B

#1C518B is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 43.2% C 0.111 H 253.5°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX#1C518B
RGBrgb(28, 81, 139)
HSLhsl(211, 66%, 33%)
HSVhsv(211, 80%, 55%)
CMYKcmyk(79.9%, 41.7%, 0%, 45.5%)
CIE-LABlab(33.97, 4.45, -37.18)
CIE-LCHlch(33.97, 37.45, 276.83°)
OKLaboklab(43.16% -0.0315 -0.1063)
OKLCHoklch(43.16% 0.111 253.5)
XYZxyz(8.0798, 7.9949, 25.5384)
Luminance0.0800 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1C518B #8B561C
analogous
#1C898B #1C518B #1E1C8B
triadic
#1C518B #8B1C51 #518B1C
tetradic
#1C518B #8B1C89 #8B561C #1C8B1E
square
#1C518B #8B1C89 #8B561C #1C8B1E
split-complementary
#1C518B #8B1E1C #898B1C
monochromatic
#071625 #123358 #1C518B #266FBE #478DDA

Accessibility & contrast

On white

8.08
#1C518B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.60
#1C518B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C518B
8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1C518B#FFFFFF#000000##FFFFFF
##1C518B1.008.082.608.08
#FFFFFF8.081.0021.001.00
#0000002.6021.001.0021.00
##FFFFFF8.081.0021.001.00

Color blindness preview

Protanopia (red-blind)
#35558D
Deuteranopia (green-blind)
#224B8A
Tritanopia (blue-blind)
#005F67
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #1c518b;
/* rgb */ color: rgb(28, 81, 139);
/* oklch */ color: oklch(43.2% 0.111 253.5);
Tailwind
colors: {
  custom: {
    50: '#6a81ad',
    500: '#1c518b',
    950: '#000000',
  },
}
SCSS
$custom: #1c518b;
$custom-light: #6a81ad;
$custom-dark: #000000;
JSON
{
  "hex": "#1c518b",
  "rgb": {
    "r": 28,
    "g": 81,
    "b": 139
  },
  "hsl": {
    "h": 211.351,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.43163,
    "c": 0.11085,
    "h": 253.5
  },
  "luminance": 0.07996
}

Semantic roles & 50–950 ramp

primary
#1C518B
secondary
#BC8447
accent
#983EE9
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A10
muted
#7A7C7F

Preview Lab

Preview with #1C518B

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

Preview Lab → · Contrast checker → · Palette generator →

#1C518B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva