Colour

#1F2533

#1F2533
Blue
Dark
Nearest: Black

#1F2533 is a blue with RGB values 31, 37, 51 and HSL 222°, 24%, 16%. It is a dark colour, so white text on it reaches 15.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1F2533#1F2533

HEX#1F2533

RGBrgb(31, 37, 51)

RGB (0–1)0.1216, 0.1451, 0.2

RGB percentages12.2%, 14.5%, 20%

HSLhsl(222, 24.4%, 16.1%)

HSV / HSBhsv(222, 39.2%, 20%)

CMYK39.2%, 27.5%, 0%, 80%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,041,139

CSS custom property--colour: #1F2533;

Brightness & contrast

Relative luminance0.01853WCAG 2.x, 0 is black and 1 is white

Perceived brightness37.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.32:1

Contrast with white15.32:1WCAG normal text: AAA

Contrast with black1.37:1WCAG normal text: Fail

Greyscale equivalent#252525

Inverted#E0DACC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#202634no red cones; affects about 1% of men; ΔE 0.5 from the original

Deuteranopia#1F2433no green cones; the most common form, about 1% of men; ΔE 1 from the original

Tritanopia#19282Ano blue cones; rare, and affects men and women equally; ΔE 9.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.32:1WCAG large text: AAA

Contrast with black, large text1.37:1WCAG large text: Fail

Named colours

Black · ΔE 17.8 Dark slate grey · ΔE 22.1 Dim grey · ΔE 31.4 Slate grey · ΔE 38.3 Gray · ΔE 40.2 Light slate grey · ΔE 41.4

Nearest named CSS colourBlack (#000000)ΔE 17.85, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#332D1F

Analogous#1F2F33, #231F33

Triadic#331F25, #25331F

Split complementary#33231F, #2F331F

Tetradic#331F2F, #332D1F, #1F3323

Tints, shades & saturation

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

Lighter +40%#7484AA

Lighter +30%#596A92

Lighter +20%#465372

Lighter +10%#323C53

Darker −10%#0C0E13

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#15213D

Less saturated −25%#292929

Channel breakdown

R31

G37

B51

Red31 (12.2%)

Green37 (14.5%)

Blue51 (20%)

Hue222°

Saturation (HSL)24.39%

Lightness16.08%

Dominant channelBlue

Hex per channelR 1F · G 25 · B 33

Keep nerding

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

#1F2533

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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