Colour

#E30017

#E30017
Red
Dark
Nearest: Red

#E30017 is a red with RGB values 227, 0, 23 and HSL 354°, 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 Red.

Colour values

#E30017#E30017

HEX#E30017

RGBrgb(227, 0, 23)

RGB (0–1)0.8902, 0, 0.0902

RGB percentages89%, 0%, 9%

HSLhsl(353.9, 100%, 44.5%)

HSV / HSBhsv(353.9, 100%, 89%)

CMYK0%, 100%, 89.9%, 11%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,876,695

CSS custom property--colour: #E30017;

Brightness & contrast

Relative luminance0.16393WCAG 2.x, 0 is black and 1 is white

Perceived brightness124.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.91:1

Contrast with white4.91:1WCAG normal text: AA

Contrast with black4.28:1WCAG normal text: Fail

Greyscale equivalent#323232

Inverted#1CFFE8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5F5412no red cones; affects about 1% of men; ΔE 79.7 from the original

Deuteranopia#908000no green cones; the most common form, about 1% of men; ΔE 79.3 from the original

Tritanopia#FB0012no blue cones; rare, and affects men and women equally; ΔE 10.6 from the original

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

Contrast with white, large text4.91:1WCAG large text: AAA

Contrast with black, large text4.28:1WCAG large text: AA

Named colours

Red · ΔE 15.7 Orange red · ΔE 18.8 Crimson · ΔE 20.8 Tomato · ΔE 22.9 Firebrick · ΔE 25.6 Dark red · ΔE 32.4

Nearest named CSS colourRed (#FF0000)ΔE 15.65, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00E3CC

Analogous#E30089, #E35A00

Triadic#17E300, #0017E3

Split complementary#00E35A, #0089E3

Tetradic#89E300, #00E3CC, #5A00E3

Tints, shades & saturation

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

Lighter +40%#FFB0B8

Lighter +30%#FF7D8A

Lighter +20%#FF4A5C

Lighter +10%#FF172F

Darker −10%#B00012

Darker −20%#7D000D

Darker −30%#4A0007

Darker −40%#170002

More saturated +25%#E30017

Less saturated −25%#C71C2E

Channel breakdown

R227

B23

Red227 (89%)

Green0 (0%)

Blue23 (9%)

Hue353.92°

Saturation (HSL)100%

Lightness44.51%

Dominant channelRed

Hex per channelR E3 · G 00 · B 17

Keep nerding

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

#E30017

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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