#A1663B

#a1663b ≈ Sienna

  • orange
  • Lightness: medium
  • Saturation: moderate
  • Warm

#a1663b is a color from the orange family, with medium lightness and moderate saturation. In the RGB model it is made of 63.14% red, 40% green and 23.14% blue; printed in CMYK it uses 0% cyan, 36.65% magenta, 63.35% yellow and 36.86% black. Its hue angle is 25.29°, with 46.36% saturation and 43.14% lightness in HSL. It is a warm color, often associated with enthusiasm, warmth and creativity. Designers typically use it for call-to-action buttons, food and restaurant brands and brand accents. White text on this color reaches a contrast ratio of 4.69:1 (WCAG AA). The closest named color is Sienna (#a0522d), ΔE 7.37.

Description generated from the measured properties of this color.

Conversions of #a1663b into other color spaces
HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#996633
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.174

Readable text 4.69:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.48:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #747474 ≈ 0.003% of males
Achromatomaly #886f62 ≈ 0.001% of males
Protanopia #776c37 ≈ 1.01% of males
Deuteranopia #85793b ≈ 1.27% of males
Tritanopia #af5a5c ≈ 0.0001% of males
Protanomaly #8a6a39 ≈ 1.08% of males
Deuteranomaly #91723b ≈ 4.63% of males
Tritanomaly #aa5f51 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-a1663b {
  color: #a1663b;
}
Background
.bg-a1663b {
  background-color: #a1663b;
  color: #ffffff;
}
Border
.border-a1663b {
  border: 2px solid #a1663b;
}
CSS variables
:root {
  --color-primary: #a1663b;
  --color-primary-rgb: 161 102 59;
  --color-primary-hsl: 25 46% 43%;
}
Gradient
.gradient-a1663b {
  background: linear-gradient(135deg, #a1663b, #a1993b);
}
Colored shadow
.shadow-a1663b {
  box-shadow: 0 8px 24px rgb(161 102 59 / 0.35);
}

Sienna
#a1663b  rgb(161, 102, 59)  hsl(25, 46%, 43%)  Sienna
#3b76a1  rgb(59, 118, 161)  hsl(205, 46%, 43%)  French Blue
#3ba166  rgb(59, 161, 102)  hsl(145, 46%, 43%)  Shamrock Green
#663ba1  rgb(102, 59, 161)  hsl(265, 46%, 43%)  Purple Heart