Nerdulator> put something in

Recognised as Colour

#5A151B

  • #5A151B
  • Red
  • Dark
  • Nearest: Maroon

#5A151B is a red with RGB values 90, 21, 27 and HSL 355°, 62%, 22%. It is a dark colour, so white text on it reaches 13.5:1 contrast (AAA for normal text). The nearest named colour is Maroon.

Colour values

#5A151B#5A151B
HEX#5A151B
RGBrgb(90, 21, 27)
RGB (0–1)0.3529, 0.0824, 0.1059
RGB percentages35.3%, 8.2%, 10.6%
HSLhsl(354.8, 62.2%, 21.8%)
HSV / HSBhsv(354.8, 76.7%, 35.3%)
CMYK0%, 76.7%, 70%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,903,643
CSS custom property--colour: #5A151B;

Brightness & contrast

Relative luminance0.02789WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.48:1
Contrast with white13.48:1WCAG normal text: AAA
Contrast with black1.56:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#A5EAE4

Colour vision & accessibility

Protanopia#28251Bno red cones; affects about 1% of men; ΔE 33.5 from the original
Deuteranopia#393419no green cones; the most common form, about 1% of men; ΔE 34.2 from the original
Tritanopia#630218no blue cones; rare, and affects men and women equally; ΔE 8.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.48:1WCAG large text: AAA
Contrast with black, large text1.56:1WCAG large text: Fail

Named colours

Nearest named CSS colourMaroon (#800000)ΔE 29.3, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#155A54
Analogous#5A153D, #5A3215
Triadic#1B5A15, #151B5A
Split complementary#155A32, #153D5A
Tetradic#3D5A15, #155A54, #32155A

Tints, shades & saturation

Lighter +40%#DA616B
Lighter +30%#D03845
Lighter +20%#AD2834
Lighter +10%#831F27
Darker −10%#310B0F
Darker −20%#070202
Darker −30%#000000
Darker −40%#000000
More saturated +25%#680710
Less saturated −25%#4C2326

Channel breakdown

R90
G21
B27
Red90 (35.3%)
Green21 (8.2%)
Blue27 (10.6%)
Hue354.78°
Saturation (HSL)62.16%
Lightness21.76%
Dominant channelRed
Hex per channelR 5A · G 15 · B 1B

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 “5a151b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.