Recognised as Colour

#FF2A04

#FF2A04
Red
Dark
Nearest: Red

#FF2A04 is a red with RGB values 255, 42, 4 and HSL 9°, 100%, 51%. 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

#FF2A04#FF2A04

HEX#FF2A04

RGBrgb(255, 42, 4)

RGB (0–1)1, 0.1647, 0.0157

RGB percentages100%, 16.5%, 1.6%

HSLhsl(9.1, 100%, 50.8%)

HSV / HSBhsv(9.1, 98.4%, 100%)

CMYK0%, 83.5%, 98.4%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,722,436

CSS custom property--colour: #FF2A04;

Brightness & contrast

Relative luminance0.22925WCAG 2.x, 0 is black and 1 is white

Perceived brightness143.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.58:1

Contrast with white3.76:1WCAG normal text: Fail

Contrast with black5.58:1WCAG normal text: AA

Greyscale equivalent#555555

Inverted#00D5FB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#756600no red cones; affects about 1% of men; ΔE 81.4 from the original

Deuteranopia#A79400no green cones; the most common form, about 1% of men; ΔE 81 from the original

Tritanopia#FF0028no blue cones; rare, and affects men and women equally; ΔE 14.6 from the original

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

Contrast with white, large text3.76:1WCAG large text: AA

Contrast with black, large text5.58:1WCAG large text: AAA

Named colours

Red · ΔE 5.3 Orange red · ΔE 8 Tomato · ΔE 27.7 Crimson · ΔE 34.5 Coral · ΔE 37.6 Firebrick · ΔE 38.4

Nearest named CSS colourRed (#FF0000)ΔE 5.32, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#04D9FF

Analogous#FF045C, #FFA704

Triadic#04FF2A, #2A04FF

Split complementary#04FFA8, #045BFF

Tetradic#5CFF04, #04D9FF, #A804FF

Tints, shades & saturation

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

Lighter +40%#FFD7D0

Lighter +30%#FFAC9D

Lighter +20%#FF816A

Lighter +10%#FF5537

Darker −10%#D01F00

Darker −20%#9D1800

Darker −30%#6A1000

Darker −40%#370800

More saturated +25%#FF2A04

Less saturated −25%#E04023

Channel breakdown

R255

G42

Red255 (100%)

Green42 (16.5%)

Blue4 (1.6%)

Hue9.08°

Saturation (HSL)100%

Lightness50.78%

Dominant channelRed

Hex per channelR FF · G 2A · B 04

Keep nerding

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

#FF2A04

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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