Recognised as Colour

#D21701

#D21701
Red
Dark
Nearest: Orange red

#D21701 is a red with RGB values 210, 23, 1 and HSL 6°, 99%, 41%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#D21701#D21701

HEX#D21701

RGBrgb(210, 23, 1)

RGB (0–1)0.8235, 0.0902, 0.0039

RGB percentages82.4%, 9%, 0.4%

HSLhsl(6.3, 99.1%, 41.4%)

HSV / HSBhsv(6.3, 99.5%, 82.4%)

CMYK0%, 89%, 99.5%, 17.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,768,449

CSS custom property--colour: #D21701;

Brightness & contrast

Relative luminance0.14317WCAG 2.x, 0 is black and 1 is white

Perceived brightness116.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.44:1

Contrast with white5.44:1WCAG normal text: AA

Contrast with black3.86:1WCAG normal text: Fail

Greyscale equivalent#3D3D3D

Inverted#2DE8FE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5C5000no red cones; affects about 1% of men; ΔE 72.4 from the original

Deuteranopia#877800no green cones; the most common form, about 1% of men; ΔE 72.1 from the original

Tritanopia#E80018no blue cones; rare, and affects men and women equally; ΔE 9.5 from the original

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

Contrast with white, large text5.44:1WCAG large text: AAA

Contrast with black, large text3.86:1WCAG large text: AA

Named colours

Orange red · ΔE 16.9 Red · ΔE 18.4 Tomato · ΔE 22.8 Firebrick · ΔE 23.7 Crimson · ΔE 24.9 Dark red · ΔE 28.3

Nearest named CSS colourOrange red (#FF4500)ΔE 16.93, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#01BCD2

Analogous#D20153, #D28001

Triadic#01D217, #1701D2

Split complementary#01D27F, #0154D2

Tetradic#53D201, #01BCD2, #7F01D2

Tints, shades & saturation

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

Lighter +40%#FFAAA0

Lighter +30%#FE7D6E

Lighter +20%#FE4F3B

Lighter +10%#FE2208

Darker −10%#9F1101

Darker −20%#6C0C01

Darker −30%#3A0600

Darker −40%#070100

More saturated +25%#D31600

Less saturated −25%#B82C1B

Channel breakdown

R210

G23

Red210 (82.4%)

Green23 (9%)

Blue1 (0.4%)

Hue6.32°

Saturation (HSL)99.05%

Lightness41.37%

Dominant channelRed

Hex per channelR D2 · G 17 · B 01

Keep nerding

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

#D21701

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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