Recognised as Colour

#A21300

#A21300
Red
Dark
Nearest: Dark red

#A21300 is a red with RGB values 162, 19, 0 and HSL 7°, 100%, 32%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Dark red.

Colour values

#A21300#A21300

HEX#A21300

RGBrgb(162, 19, 0)

RGB (0–1)0.6353, 0.0745, 0

RGB percentages63.5%, 7.5%, 0%

HSLhsl(7, 100%, 31.8%)

HSV / HSBhsv(7, 100%, 63.5%)

CMYK0%, 88.3%, 100%, 36.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,621,696

CSS custom property--colour: #A21300;

Brightness & contrast

Relative luminance0.08147WCAG 2.x, 0 is black and 1 is white

Perceived brightness89.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.99:1

Contrast with white7.99:1WCAG normal text: AAA

Contrast with black2.63:1WCAG normal text: Fail

Greyscale equivalent#303030

Inverted#5DECFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#463D00no red cones; affects about 1% of men; ΔE 59.4 from the original

Deuteranopia#685B00no green cones; the most common form, about 1% of men; ΔE 58.1 from the original

Tritanopia#B30012no blue cones; rare, and affects men and women equally; ΔE 8.8 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text7.99:1WCAG large text: AAA

Contrast with black, large text2.63:1WCAG large text: Fail

Named colours

Dark red · ΔE 9.7 Firebrick · ΔE 11.6 Maroon · ΔE 14.6 Brown · ΔE 18.3 Crimson · ΔE 25.5 Tomato · ΔE 28.2

Nearest named CSS colourDark red (#8B0000)ΔE 9.71, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#008FA2

Analogous#A2003E, #A26400

Triadic#00A213, #1300A2

Split complementary#00A264, #003EA2

Tetradic#3EA200, #008FA2, #6400A2

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FF806F

Lighter +30%#FF533C

Lighter +20%#FF2609

Lighter +10%#D51900

Darker −10%#6F0D00

Darker −20%#3C0700

Darker −30%#090100

Darker −40%#000000

More saturated +25%#A21300

Less saturated −25%#8E2214

Channel breakdown

R162

G19

Red162 (63.5%)

Green19 (7.5%)

Blue0 (0%)

Hue7.04°

Saturation (HSL)100%

Lightness31.76%

Dominant channelRed

Hex per channelR A2 · G 13 · B 00

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#A21300

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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