Nerdulator> put something in

Recognised as Colour

#D91019

  • #D91019
  • Red
  • Dark
  • Nearest: Crimson

#D91019 is a red with RGB values 217, 16, 25 and HSL 357°, 86%, 46%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#D91019#D91019
HEX#D91019
RGBrgb(217, 16, 25)
RGB (0–1)0.851, 0.0627, 0.098
RGB percentages85.1%, 6.3%, 9.8%
HSLhsl(357.3, 86.3%, 45.7%)
HSV / HSBhsv(357.3, 92.6%, 85.1%)
CMYK0%, 92.6%, 88.5%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,225,433
CSS custom property--colour: #D91019;

Brightness & contrast

Relative luminance0.15192WCAG 2.x, 0 is black and 1 is white
Perceived brightness119.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.2:1
Contrast with white5.2:1WCAG normal text: AA
Contrast with black4.04:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#26EFE6

Colour vision & accessibility

Protanopia#5D5215no red cones; affects about 1% of men; ΔE 75.3 from the original
Deuteranopia#8B7B05no green cones; the most common form, about 1% of men; ΔE 75 from the original
Tritanopia#F00019no blue cones; rare, and affects men and women equally; ΔE 9.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.2:1WCAG large text: AAA
Contrast with black, large text4.04:1WCAG large text: AA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 17.71, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#10D9D0
Analogous#D9107D, #D96B10
Triadic#19D910, #1019D9
Split complementary#10D96C, #107DD9
Tetradic#7ED910, #10D9D0, #6C10D9

Tints, shades & saturation

Lighter +40%#FABBBE
Lighter +30%#F68C90
Lighter +20%#F35C63
Lighter +10%#EF2D35
Darker −10%#AA0C14
Darker −20%#7A090E
Darker −30%#4B0509
Darker −40%#1B0203
More saturated +25%#E9000A
Less saturated −25%#BC2D34

Channel breakdown

R217
G16
B25
Red217 (85.1%)
Green16 (6.3%)
Blue25 (9.8%)
Hue357.31°
Saturation (HSL)86.27%
Lightness45.69%
Dominant channelRed
Hex per channelR D9 · G 10 · B 19

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 “d91019” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.