Colour

#EF133E

#EF133E
Red
Dark
Nearest: Crimson

#EF133E is a red with RGB values 239, 19, 62 and HSL 348°, 87%, 51%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#EF133E#EF133E

HEX#EF133E

RGBrgb(239, 19, 62)

RGB (0–1)0.9373, 0.0745, 0.2431

RGB percentages93.7%, 7.5%, 24.3%

HSLhsl(348.3, 87.3%, 50.6%)

HSV / HSBhsv(348.3, 92.1%, 93.7%)

CMYK0%, 92.1%, 74.1%, 6.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,668,030

CSS custom property--colour: #EF133E;

Brightness & contrast

Relative luminance0.19164WCAG 2.x, 0 is black and 1 is white

Perceived brightness133.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.83:1

Contrast with white4.35:1WCAG normal text: Fail

Contrast with black4.83:1WCAG normal text: AA

Greyscale equivalent#454545

Inverted#10ECC1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#645D3Dno red cones; affects about 1% of men; ΔE 81.3 from the original

Deuteranopia#978936no green cones; the most common form, about 1% of men; ΔE 81.5 from the original

Tritanopia#FF002Ano blue cones; rare, and affects men and women equally; ΔE 15.6 from the original

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

Contrast with white, large text4.35:1WCAG large text: AA

Contrast with black, large text4.83:1WCAG large text: AAA

Named colours

Crimson · ΔE 7.5 Tomato · ΔE 22.9 Firebrick · ΔE 23.1 Red · ΔE 29.7 Brown · ΔE 30.2 Orange red · ΔE 32.8

Nearest named CSS colourCrimson (#DC143C)ΔE 7.54, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#13EFC4

Analogous#EF13AC, #EF5613

Triadic#3EEF13, #133EEF

Split complementary#13EF56, #13ACEF

Tetradic#ACEF13, #13EFC4, #5613EF

Tints, shades & saturation

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

Lighter +40%#FCD2DA

Lighter +30%#F9A2B3

Lighter +20%#F5738C

Lighter +10%#F24365

Darker −10%#C20D30

Darker −20%#920A25

Darker −30%#620719

Darker −40%#33030D

More saturated +25%#FF0334

Less saturated −25%#D03251

Channel breakdown

R239

G19

B62

Red239 (93.7%)

Green19 (7.5%)

Blue62 (24.3%)

Hue348.27°

Saturation (HSL)87.3%

Lightness50.59%

Dominant channelRed

Hex per channelR EF · G 13 · B 3E

Keep nerding

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

#EF133E

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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