Nerdulator> put something in

Recognised as Colour

#A40D26

  • #A40D26
  • Red
  • Dark
  • Nearest: Brown

#A40D26 is a red with RGB values 164, 13, 38 and HSL 350°, 85%, 35%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A40D26#A40D26
HEX#A40D26
RGBrgb(164, 13, 38)
RGB (0–1)0.6431, 0.051, 0.149
RGB percentages64.3%, 5.1%, 14.9%
HSLhsl(350.1, 85.3%, 34.7%)
HSV / HSBhsv(350.1, 92.1%, 64.3%)
CMYK0%, 92.1%, 76.8%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,751,270
CSS custom property--colour: #A40D26;

Brightness & contrast

Relative luminance0.0832WCAG 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 7.88:1
Contrast with white7.88:1WCAG normal text: AAA
Contrast with black2.66:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#5BF2D9

Colour vision & accessibility

Protanopia#433E25no red cones; affects about 1% of men; ΔE 61 from the original
Deuteranopia#675C20no green cones; the most common form, about 1% of men; ΔE 60.5 from the original
Tritanopia#B5001Ano blue cones; rare, and affects men and women equally; ΔE 12.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.88:1WCAG large text: AAA
Contrast with black, large text2.66:1WCAG large text: Fail

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 7.58, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0DA48B
Analogous#A40D72, #A4400D
Triadic#26A40D, #0D26A4
Split complementary#0DA43F, #0D72A4
Tetradic#72A40D, #0DA48B, #3F0DA4

Tints, shades & saturation

Lighter +40%#F6879A
Lighter +30%#F25872
Lighter +20%#EE294A
Lighter +10%#D31131
Darker −10%#75091B
Darker −20%#450610
Darker −30%#160205
Darker −40%#000000
More saturated +25%#B1001D
Less saturated −25%#8E2335

Channel breakdown

R164
G13
B38
Red164 (64.3%)
Green13 (5.1%)
Blue38 (14.9%)
Hue350.07°
Saturation (HSL)85.31%
Lightness34.71%
Dominant channelRed
Hex per channelR A4 · G 0D · B 26

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 “a40d26” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.