Nerdulator> put something in

Recognised as Colour

#C5270A

  • #C5270A
  • Red
  • Dark
  • Nearest: Firebrick

#C5270A is a red with RGB values 197, 39, 10 and HSL 9°, 90%, 41%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#C5270A#C5270A
HEX#C5270A
RGBrgb(197, 39, 10)
RGB (0–1)0.7725, 0.1529, 0.0392
RGB percentages77.3%, 15.3%, 3.9%
HSLhsl(9.3, 90.3%, 40.6%)
HSV / HSBhsv(9.3, 94.9%, 77.3%)
CMYK0%, 80.2%, 94.9%, 22.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,920,586
CSS custom property--colour: #C5270A;

Brightness & contrast

Relative luminance0.13343WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.72:1
Contrast with white5.72:1WCAG normal text: AA
Contrast with black3.67:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#3AD8F5

Colour vision & accessibility

Protanopia#5B5000no red cones; affects about 1% of men; ΔE 65 from the original
Deuteranopia#827300no green cones; the most common form, about 1% of men; ΔE 64.7 from the original
Tritanopia#DA0024no blue cones; rare, and affects men and women equally; ΔE 14.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.72:1WCAG large text: AAA
Contrast with black, large text3.67:1WCAG large text: AA

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 16.46, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0AA8C5
Analogous#C50A4A, #C5850A
Triadic#0AC527, #270AC5
Split complementary#0AC584, #0A4BC5
Tetradic#4AC50A, #0AA8C5, #840AC5

Tints, shades & saturation

Lighter +40%#FAAFA1
Lighter +30%#F88570
Lighter +20%#F55C40
Lighter +10%#F3320F
Darker −10%#941D08
Darker −20%#641405
Darker −30%#330A03
Darker −40%#030100
More saturated +25%#CF2000
Less saturated −25%#AB3924

Channel breakdown

R197
G39
B10
Red197 (77.3%)
Green39 (15.3%)
Blue10 (3.9%)
Hue9.3°
Saturation (HSL)90.34%
Lightness40.59%
Dominant channelRed
Hex per channelR C5 · G 27 · B 0A

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 “c5270a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.