Colour

#101D4F

#101D4F
Blue
Dark
Nearest: Dark slateblue

#101D4F is a blue with RGB values 16, 29, 79 and HSL 228°, 66%, 19%. It is a dark colour, so white text on it reaches 16:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#101D4F#101D4F

HEX#101D4F

RGBrgb(16, 29, 79)

RGB (0–1)0.0627, 0.1137, 0.3098

RGB percentages6.3%, 11.4%, 31%

HSLhsl(227.6, 66.3%, 18.6%)

HSV / HSBhsv(227.6, 79.7%, 31%)

CMYK79.7%, 63.3%, 0%, 69%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,056,079

CSS custom property--colour: #101D4F;

Brightness & contrast

Relative luminance0.01553WCAG 2.x, 0 is black and 1 is white

Perceived brightness35.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.02:1

Contrast with white16.02:1WCAG normal text: AAA

Contrast with black1.31:1WCAG normal text: Fail

Greyscale equivalent#1E1E1E

Inverted#EFE2B0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002451no red cones; affects about 1% of men; ΔE 6.9 from the original

Deuteranopia#001F4Eno green cones; the most common form, about 1% of men; ΔE 4 from the original

Tritanopia#002932no blue cones; rare, and affects men and women equally; ΔE 33.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.02:1WCAG large text: AAA

Contrast with black, large text1.31:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 23.3 Midnight blue · ΔE 24.3 Rebecca purple · ΔE 37.5 Black · ΔE 37.9 Dark slate grey · ΔE 43.1 Indigo · ΔE 43.1

Nearest named CSS colourDark slateblue (#483D8B)ΔE 23.27, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4F4210

Analogous#103D4F, #22104F

Triadic#4F101D, #1D4F10

Split complementary#4F2210, #3D4F10

Tetradic#4F103D, #4F4210, #104F22

Tints, shades & saturation

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

Lighter +40%#506CDB

Lighter +30%#2A4CCE

Lighter +20%#213CA4

Lighter +10%#192D79

Darker −10%#070D25

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#04165B

Less saturated −25%#1C2443

Channel breakdown

R16

G29

B79

Red16 (6.3%)

Green29 (11.4%)

Blue79 (31%)

Hue227.62°

Saturation (HSL)66.32%

Lightness18.63%

Dominant channelBlue

Hex per channelR 10 · G 1D · B 4F

Keep nerding

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

#101D4F

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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