#1D528C#1D528C

#1D528C is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.5% C 0.111 H 253.4°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX#1D528C
RGBrgb(29, 82, 140)
HSLhsl(211, 66%, 33%)
HSVhsv(211, 79%, 55%)
CMYKcmyk(79.3%, 41.4%, 0%, 45.1%)
CIE-LABlab(34.37, 4.31, -37.15)
CIE-LCHlch(34.37, 37.40, 276.62°)
OKLaboklab(43.5% -0.0316 -0.1062)
OKLCHoklch(43.5% 0.111 253.4)
XYZxyz(8.2558, 8.1883, 25.9512)
Luminance0.0819 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D528C #8C571D
analogous
#1D898C #1D528C #1F1D8C
triadic
#1D528C #8C1D52 #528C1D
tetradic
#1D528C #8C1D89 #8C571D #1D8C1F
square
#1D528C #8C1D89 #8C571D #1D8C1F
split-complementary
#1D528C #8C1F1D #898C1D
monochromatic
#081727 #123459 #1D528C #2870BF #4A8ED9

Accessibility & contrast

On white

7.96
#1D528C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.64
#1D528C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D528C
7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D528C#FFFFFF#000000##FFFFFF
##1D528C1.007.962.647.96
#FFFFFF7.961.0021.001.00
#0000002.6421.001.0021.00
##FFFFFF7.961.0021.001.00

Color blindness preview

Protanopia (red-blind)
#36568E
Deuteranopia (green-blind)
#244C8B
Tritanopia (blue-blind)
#006068
Achromatopsia (no color)
#515151

Design tokens & code

CSS
--color: #1d528c;
/* rgb */ color: rgb(29, 82, 140);
/* oklch */ color: oklch(43.5% 0.111 253.4);
Tailwind
colors: {
  custom: {
    50: '#6b82ae',
    500: '#1d528c',
    950: '#000000',
  },
}
SCSS
$custom: #1d528c;
$custom-light: #6b82ae;
$custom-dark: #000000;
JSON
{
  "hex": "#1d528c",
  "rgb": {
    "r": 29,
    "g": 82,
    "b": 140
  },
  "hsl": {
    "h": 211.351,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.43503,
    "c": 0.11075,
    "h": 253.4
  },
  "luminance": 0.08189
}

Semantic roles & 50–950 ramp

primary
#1D528C
secondary
#BC8549
accent
#983FE9
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#080A10
muted
#7A7C7F

Preview Lab

Preview with #1D528C

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

Preview Lab → · Contrast checker → · Palette generator →

#1D528C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva