#1B574E#1B574E

#1B574E is a dark, moderate teal. Relative luminance 0.076; OKLCH L 41.6% C 0.063 H 181.4°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX#1B574E
RGBrgb(27, 87, 78)
HSLhsl(171, 53%, 22%)
HSVhsv(171, 69%, 34%)
CMYKcmyk(69%, 0%, 10.3%, 65.9%)
CIE-LABlab(33.13, -21.55, -0.42)
CIE-LCHlch(33.13, 21.55, 181.11°)
OKLaboklab(41.57% -0.0628 -0.0015)
OKLCHoklch(41.57% 0.063 181.4)
XYZxyz(5.2347, 7.5989, 8.3971)
Luminance0.0760 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B574E #571B24
analogous
#1B5730 #1B574E #1B4257
triadic
#1B574E #4E1B57 #574E1B
tetradic
#1B574E #301B57 #571B24 #42571B
square
#1B574E #301B57 #571B24 #42571B
split-complementary
#1B574E #571B42 #57301B
monochromatic
#071715 #0D2824 #1B574E #298678 #38B4A2

Accessibility & contrast

On white

8.33
#1B574E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.52
#1B574E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B574E
8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B574E#FFFFFF#000000##FFFFFF
##1B574E1.008.332.528.33
#FFFFFF8.331.0021.001.00
#0000002.5221.001.0021.00
##FFFFFF8.331.0021.001.00

Color blindness preview

Protanopia (red-blind)
#53524E
Deuteranopia (green-blind)
#4A4B4F
Tritanopia (blue-blind)
#005954
Achromatopsia (no color)
#4E4E4E

Design tokens & code

CSS
--color: #1b574e;
/* rgb */ color: rgb(27, 87, 78);
/* oklch */ color: oklch(41.6% 0.063 181.4);
Tailwind
colors: {
  custom: {
    50: '#60877f',
    500: '#1b574e',
    950: '#000000',
  },
}
SCSS
$custom: #1b574e;
$custom-light: #60877f;
$custom-dark: #000000;
JSON
{
  "hex": "#1b574e",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 78
  },
  "hsl": {
    "h": 171,
    "s": 52.632,
    "l": 22.353
  },
  "oklch": {
    "l": 0.41571,
    "c": 0.06278,
    "h": 181.4
  },
  "luminance": 0.07599
}

Semantic roles & 50–950 ramp

primary
#1B574E
secondary
#8D414C
accent
#4C61DC
background
#F5F8F7
surface
#EAEFEE
border
#C6CAC9
text
#050B0A
muted
#797C7C

Preview Lab

Preview with #1B574E

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

Preview Lab → · Contrast checker → · Palette generator →

#1B574E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva