Colour

#FF2B1C

#FF2B1C
Red
Dark
Nearest: Red

#FF2B1C is a red with RGB values 255, 43, 28 and HSL 4°, 100%, 55%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FF2B1C#FF2B1C

HEX#FF2B1C

RGBrgb(255, 43, 28)

RGB (0–1)1, 0.1686, 0.1098

RGB percentages100%, 16.9%, 11%

HSLhsl(4, 100%, 55.5%)

HSV / HSBhsv(4, 89%, 100%)

CMYK0%, 83.1%, 89%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,722,716

CSS custom property--colour: #FF2B1C;

Brightness & contrast

Relative luminance0.23072WCAG 2.x, 0 is black and 1 is white

Perceived brightness143.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.61:1

Contrast with white3.74:1WCAG normal text: Fail

Contrast with black5.61:1WCAG normal text: AA

Greyscale equivalent#575757

Inverted#00D4E3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#746714no red cones; affects about 1% of men; ΔE 81.6 from the original

Deuteranopia#A79402no green cones; the most common form, about 1% of men; ΔE 81.1 from the original

Tritanopia#FF002Cno blue cones; rare, and affects men and women equally; ΔE 10.4 from the original

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

Contrast with white, large text3.74:1WCAG large text: AA

Contrast with black, large text5.61:1WCAG large text: AAA

Named colours

Red · ΔE 8.8 Orange red · ΔE 11.7 Tomato · ΔE 23.2 Crimson · ΔE 28.1 Firebrick · ΔE 33.6 Coral · ΔE 34.5

Nearest named CSS colourRed (#FF0000)ΔE 8.84, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1CF0FF

Analogous#FF1C7F, #FF9D1C

Triadic#1CFF2B, #2B1CFF

Split complementary#1CFF9C, #1C7FFF

Tetradic#7EFF1C, #1CF0FF, #9C1CFF

Tints, shades & saturation

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

Lighter +40%#FFEAE8

Lighter +30%#FFBAB5

Lighter +20%#FF8A82

Lighter +10%#FF5B4F

Darker −10%#E80F00

Darker −20%#B50C00

Darker −30%#820900

Darker −40%#4F0500

More saturated +25%#FF2B1C

Less saturated −25%#E34438

Channel breakdown

R255

G43

B28

Red255 (100%)

Green43 (16.9%)

Blue28 (11%)

Hue3.96°

Saturation (HSL)100%

Lightness55.49%

Dominant channelRed

Hex per channelR FF · G 2B · B 1C

Keep nerding

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

#FF2B1C

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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