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Colour

#00101F

  • #00101F
  • Blue
  • Dark
  • Nearest: Black

#00101F is a blue with RGB values 0, 16, 31 and HSL 209°, 100%, 6%. It is a dark colour, so white text on it reaches 19.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#00101F#00101F
HEX#00101F
RGBrgb(0, 16, 31)
RGB (0–1)0, 0.0627, 0.1216
RGB percentages0%, 6.3%, 12.2%
HSLhsl(209, 100%, 6.1%)
HSV / HSBhsv(209, 100%, 12.2%)
CMYK100%, 48.4%, 0%, 87.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,127
CSS custom property--colour: #00101F;

Brightness & contrast

Relative luminance0.0047WCAG 2.x, 0 is black and 1 is white
Perceived brightness16.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.2:1
Contrast with white19.2:1WCAG normal text: AAA
Contrast with black1.09:1WCAG normal text: Fail
Greyscale equivalent#0E0E0E
Inverted#FFEFE0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#091120no red cones; affects about 1% of men; ΔE 2.4 from the original
Deuteranopia#040D1Fno green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#001415no blue cones; rare, and affects men and women equally; ΔE 10.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.2:1WCAG large text: AAA
Contrast with black, large text1.09:1WCAG large text: Fail

Named colours

Black · ΔE 12.3Dark slate grey · ΔE 30.3Dim grey · ΔE 41.8Dark slateblue · ΔE 48.4Slate grey · ΔE 48.6Gray · ΔE 50.7
Nearest named CSS colourBlack (#000000)ΔE 12.32, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1F0F00
Analogous#001F1E, #00011F
Triadic#1F0010, #101F00
Split complementary#1F0001, #1F1E00
Tetradic#1E001F, #1F0F00, #011F00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0079EB
Lighter +30%#005FB8
Lighter +20%#004585
Lighter +10%#002A52
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00101F
Less saturated −25%#04101B

Channel breakdown

R0
G16
B31
Red0 (0%)
Green16 (6.3%)
Blue31 (12.2%)
Hue209.03°
Saturation (HSL)100%
Lightness6.08%
Dominant channelBlue
Hex per channelR 00 · G 10 · B 1F

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Every value on this page was computed from “00101f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.