Colour

#33151F

#33151F
Red
Dark
Nearest: Black

#33151F is a red with RGB values 51, 21, 31 and HSL 340°, 42%, 14%. It is a dark colour, so white text on it reaches 16.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#33151F#33151F

HEX#33151F

RGBrgb(51, 21, 31)

RGB (0–1)0.2, 0.0824, 0.1216

RGB percentages20%, 8.2%, 12.2%

HSLhsl(340, 41.7%, 14.1%)

HSV / HSBhsv(340, 58.8%, 20%)

CMYK0%, 58.8%, 39.2%, 80%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,347,743

CSS custom property--colour: #33151F;

Brightness & contrast

Relative luminance0.01339WCAG 2.x, 0 is black and 1 is white

Perceived brightness33.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.56:1

Contrast with white16.56:1WCAG normal text: AAA

Contrast with black1.27:1WCAG normal text: Fail

Greyscale equivalent#1C1C1C

Inverted#CCEAE0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1A1B1Fno red cones; affects about 1% of men; ΔE 16.3 from the original

Deuteranopia#21211Eno green cones; the most common form, about 1% of men; ΔE 17.4 from the original

Tritanopia#371319no blue cones; rare, and affects men and women equally; ΔE 5.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.56:1WCAG large text: AAA

Contrast with black, large text1.27:1WCAG large text: Fail

Named colours

Black · ΔE 20.1 Dark slate grey · ΔE 34.6 Dim grey · ΔE 36.8 Gray · ΔE 45.2 Slate grey · ΔE 46.5 Dark slateblue · ΔE 47.3

Nearest named CSS colourBlack (#000000)ΔE 20.14, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#153329

Analogous#33152E, #331A15

Triadic#1F3315, #151F33

Split complementary#15331A, #152E33

Tetradic#2E3315, #153329, #1A1533

Tints, shades & saturation

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

Lighter +40%#BB597A

Lighter +30%#9F4261

Lighter +20%#7B334B

Lighter +10%#572435

Darker −10%#0F0609

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#3C0C1C

Less saturated −25%#2A1E22

Channel breakdown

R51

G21

B31

Red51 (20%)

Green21 (8.2%)

Blue31 (12.2%)

Hue340°

Saturation (HSL)41.67%

Lightness14.12%

Dominant channelRed

Hex per channelR 33 · G 15 · B 1F

Keep nerding

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#33151F

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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