Colour

#FF5037

#FF5037
Red
Dark
Nearest: Tomato

#FF5037 is a red with RGB values 255, 80, 55 and HSL 7°, 100%, 61%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#FF5037#FF5037

HEX#FF5037

RGBrgb(255, 80, 55)

RGB (0–1)1, 0.3137, 0.2157

RGB percentages100%, 31.4%, 21.6%

HSLhsl(7.5, 100%, 60.8%)

HSV / HSBhsv(7.5, 78.4%, 100%)

CMYK0%, 68.6%, 78.4%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,732,215

CSS custom property--colour: #FF5037;

Brightness & contrast

Relative luminance0.27273WCAG 2.x, 0 is black and 1 is white

Perceived brightness153.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.45:1

Contrast with white3.25:1WCAG normal text: Fail

Contrast with black6.45:1WCAG normal text: AA

Greyscale equivalent#737373

Inverted#00AFC8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#847632no red cones; affects about 1% of men; ΔE 70.2 from the original

Deuteranopia#AF9D2Fno green cones; the most common form, about 1% of men; ΔE 70.9 from the original

Tritanopia#FF064Cno blue cones; rare, and affects men and women equally; ΔE 24.5 from the original

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

Contrast with white, large text3.25:1WCAG large text: AA

Contrast with black, large text6.45:1WCAG large text: AAA

Named colours

Tomato · ΔE 9.1 Orange red · ΔE 17.8 Coral · ΔE 21.5 Crimson · ΔE 22.5 Red · ΔE 22.7 Firebrick · ΔE 26

Nearest named CSS colourTomato (#FF6347)ΔE 9.13, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#37E6FF

Analogous#FF3782, #FFB437

Triadic#37FF50, #5037FF

Split complementary#37FFB4, #3782FF

Tetradic#82FF37, #37E6FF, #B437FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFD6D0

Lighter +20%#FFA99D

Lighter +10%#FF7D6A

Darker −10%#FF2304

Darker −20%#D01A00

Darker −30%#9D1400

Darker −40%#6A0D00

More saturated +25%#FF5037

Less saturated −25%#E66350

Channel breakdown

R255

G80

B55

Red255 (100%)

Green80 (31.4%)

Blue55 (21.6%)

Hue7.5°

Saturation (HSL)100%

Lightness60.78%

Dominant channelRed

Hex per channelR FF · G 50 · B 37

Keep nerding

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

#FF5037

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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