Recognised as Colour

#1F2330

#1F2330
Blue
Dark
Nearest: Black

#1F2330 is a blue with RGB values 31, 35, 48 and HSL 226°, 22%, 15%. It is a dark colour, so white text on it reaches 15.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1F2330#1F2330

HEX#1F2330

RGBrgb(31, 35, 48)

RGB (0–1)0.1216, 0.1373, 0.1882

RGB percentages12.2%, 13.7%, 18.8%

HSLhsl(225.9, 21.5%, 15.5%)

HSV / HSBhsv(225.9, 35.4%, 18.8%)

CMYK35.4%, 27.1%, 0%, 81.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,040,624

CSS custom property--colour: #1F2330;

Brightness & contrast

Relative luminance0.01707WCAG 2.x, 0 is black and 1 is white

Perceived brightness35.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.66:1

Contrast with white15.66:1WCAG normal text: AAA

Contrast with black1.34:1WCAG normal text: Fail

Greyscale equivalent#232323

Inverted#E0DCCF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1F2431no red cones; affects about 1% of men; ΔE 0.6 from the original

Deuteranopia#1E2330no green cones; the most common form, about 1% of men; ΔE 0.4 from the original

Tritanopia#1A2527no blue cones; rare, and affects men and women equally; ΔE 8.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.66:1WCAG large text: AAA

Contrast with black, large text1.34:1WCAG large text: Fail

Named colours

Black · ΔE 16.7 Dark slate grey · ΔE 22.8 Dim grey · ΔE 32 Slate grey · ΔE 39.2 Gray · ΔE 40.8 Light slate grey · ΔE 42.3

Nearest named CSS colourBlack (#000000)ΔE 16.74, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#302C1F

Analogous#1F2C30, #241F30

Triadic#301F23, #23301F

Split complementary#30241F, #2C301F

Tetradic#301F2C, #302C1F, #1F3024

Tints, shades & saturation

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

Lighter +40%#7581A6

Lighter +30%#5B678D

Lighter +20%#47506E

Lighter +10%#333A4F

Darker −10%#0B0C11

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#151E3A

Less saturated −25%#282828

Channel breakdown

R31

G35

B48

Red31 (12.2%)

Green35 (13.7%)

Blue48 (18.8%)

Hue225.88°

Saturation (HSL)21.52%

Lightness15.49%

Dominant channelBlue

Hex per channelR 1F · G 23 · B 30

Keep nerding

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

#1F2330

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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