#166375

A color in the Cyan, Emerald family

#166375 is a color in the Cyan, Emerald family: RGB(22, 99, 117), HSL(191°, 68%, 27%), CMYK(81%, 15%, 0%, 54%). Closest named color: darkslategray. Contrast is 6.83:1 on white and 3.08:1 on black. See shades, harmonies and color-blindness simulation.

Color Codes

HEX#166375
RGBrgb(22 99 117)
RGB (legacy)rgb(22, 99, 117)
RGB %rgb(9% 39% 46%)
HSLhsl(191 68% 27%)
HSV / HSBhsv(191, 81%, 46%)
HWBhwb(191 9% 54%)
CMYKcmyk(81%, 15%, 0%, 54%)
CIELAB (D50)lab(38.2 -18.31 -17.07)
LCHlch(38.2 25.04 223)
OKLaboklab(0.4636 -0.06 -0.0464)
OKLCHoklch(0.4636 0.0759 217.7)
Decimal1467253

Properties

Color ToneCyan, Emerald
Closest named colordarkslategray ΔE 7.4
Closest web-safe color#006666
Hue191°
Saturation (HSL / HSV)68% / 81%
Lightness (HSL)27%
Brightness or Value (HSV)46%
Luminance (Rec.601 / Rec.709)31% / 33%
Relative luminance (WCAG)0.1038
Red / Green / Blue22 / 99 / 117

WCAG 2.2 Contrast Ratio

On White (#ffffff)
6.83:1
AA Normal (4.5:1) · PassAA Large (3:1) · PassAAA Normal (7:1) · Fail
On Black (#000000)
3.08:1
AA Normal (4.5:1) · FailAA Large (3:1) · PassAAA Normal (7:1) · Fail
Aa Bb 123

APCA Contrast Lc (reference) — As text on white / black: Lc 83.2 / -18.7 · As background with white / black text: Lc -88.2 / 20.8

Lightness Scale (OKLCH 50–950)

Eleven steps that change only perceived lightness while keeping hue and chroma — ready to use as design-system color tokens.

Tints (mixed with white)

Shades (mixed with black)

Color Harmonies

Color Vision Deficiency Simulation

Estimated appearance of this color for people with color vision deficiencies (Machado 2009).

Similar Named Colors

Use in CSS

:root {
  --color-brand: #166375;
  --color-brand-oklch: oklch(46.36% 0.0759 217.7);
}
.text { color: var(--color-brand); }
.background { background-color: var(--color-brand); }
.border { border: 1px solid rgb(22 99 117 / 50%); }
/* Tailwind CSS */
<div class="bg-[#166375] text-[#166375] border-[#166375]">