Colour

#E3002F

#E3002F
Red
Dark
Nearest: Crimson

#E3002F is a red with RGB values 227, 0, 47 and HSL 348°, 100%, 45%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E3002F#E3002F

HEX#E3002F

RGBrgb(227, 0, 47)

RGB (0–1)0.8902, 0, 0.1843

RGB percentages89%, 0%, 18.4%

HSLhsl(347.6, 100%, 44.5%)

HSV / HSBhsv(347.6, 100%, 89%)

CMYK0%, 100%, 79.3%, 11%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,876,719

CSS custom property--colour: #E3002F;

Brightness & contrast

Relative luminance0.16536WCAG 2.x, 0 is black and 1 is white

Perceived brightness125.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.88:1

Contrast with white4.88:1WCAG normal text: AA

Contrast with black4.31:1WCAG normal text: Fail

Greyscale equivalent#343434

Inverted#1CFFD0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5E552Eno red cones; affects about 1% of men; ΔE 79.4 from the original

Deuteranopia#8F8025no green cones; the most common form, about 1% of men; ΔE 79.4 from the original

Tritanopia#FA001Dno blue cones; rare, and affects men and women equally; ΔE 16.5 from the original

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

Contrast with white, large text4.88:1WCAG large text: AAA

Contrast with black, large text4.31:1WCAG large text: AA

Named colours

Crimson · ΔE 9.3 Firebrick · ΔE 20.6 Tomato · ΔE 22.2 Red · ΔE 26.2 Brown · ΔE 28.9 Orange red · ΔE 29.1

Nearest named CSS colourCrimson (#DC143C)ΔE 9.26, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00E3B4

Analogous#E300A1, #E34300

Triadic#2FE300, #002FE3

Split complementary#00E343, #00A0E3

Tetradic#A0E300, #00E3B4, #4200E3

Tints, shades & saturation

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

Lighter +40%#FFB0C0

Lighter +30%#FF7D98

Lighter +20%#FF4A6F

Lighter +10%#FF1747

Darker −10%#B00024

Darker −20%#7D001A

Darker −30%#4A000F

Darker −40%#170005

More saturated +25%#E3002F

Less saturated −25%#C71C40

Channel breakdown

R227

B47

Red227 (89%)

Green0 (0%)

Blue47 (18.4%)

Hue347.58°

Saturation (HSL)100%

Lightness44.51%

Dominant channelRed

Hex per channelR E3 · G 00 · B 2F

Keep nerding

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

#E3002F

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

Nerdulate something else