Nerdulator> put something in

Recognised as Colour

#A2191A

  • #A2191A
  • Red
  • Dark
  • Nearest: Firebrick

#A2191A is a red with RGB values 162, 25, 26 and HSL 360°, 73%, 37%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#A2191A#A2191A
HEX#A2191A
RGBrgb(162, 25, 26)
RGB (0–1)0.6353, 0.098, 0.102
RGB percentages63.5%, 9.8%, 10.2%
HSLhsl(359.6, 73.3%, 36.7%)
HSV / HSBhsv(359.6, 84.6%, 63.5%)
CMYK0%, 84.6%, 84%, 36.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,623,258
CSS custom property--colour: #A2191A;

Brightness & contrast

Relative luminance0.08451WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.81:1
Contrast with white7.81:1WCAG normal text: AAA
Contrast with black2.69:1WCAG normal text: Fail
Greyscale equivalent#363636
Inverted#5DE6E5

Colour vision & accessibility

Protanopia#473F18no red cones; affects about 1% of men; ΔE 57.6 from the original
Deuteranopia#685C12no green cones; the most common form, about 1% of men; ΔE 57.4 from the original
Tritanopia#B3001Cno blue cones; rare, and affects men and women equally; ΔE 9.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.81:1WCAG large text: AAA
Contrast with black, large text2.69:1WCAG large text: Fail

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 4.99, a close match
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#19A2A1
Analogous#A2195F, #A25C19
Triadic#1AA219, #191AA2
Split complementary#19A25C, #195FA2
Tetradic#5FA219, #19A2A1, #5C19A2

Tints, shades & saturation

Lighter +40%#EF9899
Lighter +30%#E86C6D
Lighter +20%#E14041
Lighter +10%#CE2021
Darker −10%#761213
Darker −20%#4A0B0C
Darker −30%#1D0505
Darker −40%#000000
More saturated +25%#B90203
Less saturated −25%#8B3031

Channel breakdown

R162
G25
B26
Red162 (63.5%)
Green25 (9.8%)
Blue26 (10.2%)
Hue359.56°
Saturation (HSL)73.26%
Lightness36.67%
Dominant channelRed
Hex per channelR A2 · G 19 · B 1A

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “a2191a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.