#1B5372#1B5372

#1B5372 is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.1% C 0.077 H 237.2°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX#1B5372
RGBrgb(27, 83, 114)
HSLhsl(201, 62%, 28%)
HSVhsv(201, 76%, 45%)
CMYKcmyk(76.3%, 27.2%, 0%, 55.3%)
CIE-LABlab(33.21, -6.79, -22.94)
CIE-LCHlch(33.21, 23.93, 253.52°)
OKLaboklab(42.11% -0.0417 -0.0647)
OKLCHoklch(42.11% 0.077 237.2)
XYZxyz(6.5813, 7.6337, 17.0429)
Luminance0.0763 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B5372 #723A1B
analogous
#1B7265 #1B5372 #1B2872
triadic
#1B5372 #721B53 #53721B
tetradic
#1B5372 #651B72 #723A1B #28721B
square
#1B5372 #651B72 #723A1B #28721B
split-complementary
#1B5372 #721B28 #72651B
monochromatic
#061219 #0F2F41 #1B5372 #2777A3 #389AD0

Accessibility & contrast

On white

8.31
#1B5372 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.53
#1B5372 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5372
8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B5372#FFFFFF#000000##FFFFFF
##1B53721.008.312.538.31
#FFFFFF8.311.0021.001.00
#0000002.5321.001.0021.00
##FFFFFF8.311.0021.001.00

Color blindness preview

Protanopia (red-blind)
#445373
Deuteranopia (green-blind)
#384A71
Tritanopia (blue-blind)
#005B5E
Achromatopsia (no color)
#4E4E4E

Design tokens & code

CSS
--color: #1b5372;
/* rgb */ color: rgb(27, 83, 114);
/* oklch */ color: oklch(42.1% 0.077 237.2);
Tailwind
colors: {
  custom: {
    50: '#65839a',
    500: '#1b5372',
    950: '#000000',
  },
}
SCSS
$custom: #1b5372;
$custom-light: #65839a;
$custom-dark: #000000;
JSON
{
  "hex": "#1b5372",
  "rgb": {
    "r": 27,
    "g": 83,
    "b": 114
  },
  "hsl": {
    "h": 201.379,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.42105,
    "c": 0.07698,
    "h": 237.2
  },
  "luminance": 0.07634
}

Semantic roles & 50–950 ramp

primary
#1B5372
secondary
#A76642
accent
#7D43E5
background
#F6F8F9
surface
#EBEFF2
border
#C6CACC
text
#060A0E
muted
#7A7C7E

Preview Lab

Preview with #1B5372

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

Preview Lab → · Contrast checker → · Palette generator →

#1B5372 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva