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#A2100A

#a2100a ≈ Rufous

  • red
  • Lightness: low
  • Saturation: strong
  • Warm
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#a2100a is a color from the red family, with low lightness and strong saturation. In the RGB model it is made of 63.53% red, 6.27% green and 3.92% blue; printed in CMYK it uses 0% cyan, 90.12% magenta, 93.83% yellow and 36.47% black. Its hue angle is 2.37°, with 88.37% saturation and 33.73% lightness in HSL. It is a warm color, often associated with energy, passion and urgency. Designers typically use it for food and restaurant brands, sales and promotions and corporate identities. White text on this color reaches a contrast ratio of 8.03:1 (WCAG AAA). The closest named color is Rufous (#a81c07), ΔE 2.48.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#990000
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0807

Complementary

  1. #a2100a
  2. #0a9ca2

Split complementary

  1. #a2100a
  2. #0aa25c
  3. #0a50a2

Analogous

  1. #a20a50
  2. #a2100a
  3. #a25c0a

Triadic

  1. #a2100a
  2. #0aa210
  3. #100aa2

Tetradic

  1. #a2100a
  2. #9ca20a
  3. #0a9ca2
  4. #100aa2

Square

  1. #a2100a
  2. #50a20a
  3. #0a9ca2
  4. #5c0aa2

Monochromatic

  1. #130201
  2. #5a0906
  3. #a2100a
  4. #ea170e
  5. #f45751

Shades

#a2100a mixed progressively with black.

  1. #a2100a
  2. #920e09
  3. #820d08
  4. #710b07
  5. #610a06
  6. #510805
  7. #410604
  8. #310503
  9. #200302
  10. #100201
  11. #000000

Tints

#a2100a mixed progressively with white.

  1. #a2100a
  2. #ab2823
  3. #b5403b
  4. #be5854
  5. #c7706c
  6. #d18885
  7. #da9f9d
  8. #e3b7b6
  9. #eccfce
  10. #f6e7e7
  11. #ffffff

Tones

#a2100a mixed progressively with gray.

  1. #a2100a
  2. #9f1b16
  3. #9b2622
  4. #98322d
  5. #943d39
  6. #914845
  7. #8e5351
  8. #8a5e5d
  9. #876a68
  10. #837574
  11. #808080

Readable text 8.03:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.61:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #505050 ≈ 0.003% of males
Achromatomaly #7a403f ≈ 0.001% of males
Protanopia #453c05 ≈ 1.01% of males
Deuteranopia #675b00 ≈ 1.27% of males
Tritanopia #b30012 ≈ 0.0001% of males
Protanomaly #763007 ≈ 1.08% of males
Deuteranomaly #834802 ≈ 4.63% of males
Tritanomaly #ad000f ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-a2100a {
  color: #a2100a;
}
Background
.bg-a2100a {
  background-color: #a2100a;
  color: #ffffff;
}
Border
.border-a2100a {
  border: 2px solid #a2100a;
}
CSS variables
:root {
  --color-primary: #a2100a;
  --color-primary-rgb: 162 16 10;
  --color-primary-hsl: 2 88% 34%;
}
Gradient
.gradient-a2100a {
  background: linear-gradient(135deg, #a2100a, #a25c0a);
}
Colored shadow
.shadow-a2100a {
  box-shadow: 0 8px 24px rgb(162 16 10 / 0.35);
}

#a81c07 Rufous ΔE 2.48 #92000a Sangria ΔE 3.92 #b31b1b Cornell Red ΔE 4.39 #8b0000 Dark Red ΔE 4.89 #b22222 Firebrick ΔE 5.30 #960018 Carmine ΔE 5.76 #882d17 Kobe ΔE 5.89 #5deff5 Inverted #505050 Grayscale 

Rufous
#a2100a  rgb(162, 16, 10)  hsl(2, 88%, 34%)  Rufous
#0a9ca2  rgb(10, 156, 162)  hsl(182, 88%, 34%)  Cadet Blue
#0aa210  rgb(10, 162, 16)  hsl(122, 88%, 34%)  Islamic Green
#100aa2  rgb(16, 10, 162)  hsl(242, 88%, 34%)  Zaffre