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Recognised as Colour

#C0451B

  • #C0451B
  • Orange
  • Dark
  • Nearest: Firebrick

#C0451B is a orange with RGB values 192, 69, 27 and HSL 15°, 75%, 43%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#C0451B#C0451B
HEX#C0451B
RGBrgb(192, 69, 27)
RGB (0–1)0.7529, 0.2706, 0.1059
RGB percentages75.3%, 27.1%, 10.6%
HSLhsl(15.3, 75.3%, 42.9%)
HSV / HSBhsv(15.3, 85.9%, 75.3%)
CMYK0%, 64.1%, 85.9%, 24.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,600,603
CSS custom property--colour: #C0451B;

Brightness & contrast

Relative luminance0.15542WCAG 2.x, 0 is black and 1 is white
Perceived brightness117.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.11:1
Contrast with white5.11:1WCAG normal text: AA
Contrast with black4.11:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#3FBAE4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#695C13no red cones; affects about 1% of men; ΔE 51.8 from the original
Deuteranopia#877814no green cones; the most common form, about 1% of men; ΔE 52.5 from the original
Tritanopia#D4223Dno blue cones; rare, and affects men and women equally; ΔE 25.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.11:1WCAG large text: AAA
Contrast with black, large text4.11:1WCAG large text: AA

Named colours

Firebrick · ΔE 15.7Chocolate · ΔE 16.3Tomato · ΔE 19.1Dark red · ΔE 20Brown · ΔE 20.3Coral · ΔE 21.1
Nearest named CSS colourFirebrick (#B22222)ΔE 15.7, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B96C0
Analogous#C01B44, #C0971B
Triadic#1BC045, #451BC0
Split complementary#1BC097, #1B44C0
Tetradic#44C01B, #1B96C0, #971BC0

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F4C3B3
Lighter +30%#EEA086
Lighter +20%#E87E59
Lighter +10%#E15B2D
Darker −10%#933515
Darker −20%#67250E
Darker −30%#3A1508
Darker −40%#0D0502
More saturated +25%#DB3800
Less saturated −25%#A55236

Channel breakdown

R192
G69
B27
Red192 (75.3%)
Green69 (27.1%)
Blue27 (10.6%)
Hue15.27°
Saturation (HSL)75.34%
Lightness42.94%
Dominant channelRed
Hex per channelR C0 · G 45 · B 1B

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Every value on this page was computed from “c0451b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.