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Recognised as Colour

#01101B

  • #01101B
  • Blue
  • Dark
  • Nearest: Black

#01101B is a blue with RGB values 1, 16, 27 and HSL 205°, 93%, 5%. 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

#01101B#01101B
HEX#01101B
RGBrgb(1, 16, 27)
RGB (0–1)0.0039, 0.0627, 0.1059
RGB percentages0.4%, 6.3%, 10.6%
HSLhsl(205.4, 92.9%, 5.5%)
HSV / HSBhsv(205.4, 96.3%, 10.6%)
CMYK96.3%, 40.7%, 0%, 89.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer69,659
CSS custom property--colour: #01101B;

Brightness & contrast

Relative luminance0.00456WCAG 2.x, 0 is black and 1 is white
Perceived brightness15.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.24:1
Contrast with white19.24:1WCAG normal text: AAA
Contrast with black1.09:1WCAG normal text: Fail
Greyscale equivalent#0E0E0E
Inverted#FEEFE4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0B101Bno red cones; affects about 1% of men; ΔE 2.8 from the original
Deuteranopia#070D1Bno green cones; the most common form, about 1% of men; ΔE 3.2 from the original
Tritanopia#001314no blue cones; rare, and affects men and women equally; ΔE 7.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.24:1WCAG large text: AAA
Contrast with black, large text1.09:1WCAG large text: Fail

Named colours

Black · ΔE 9.7Dark slate grey · ΔE 29.4Dim grey · ΔE 41.2Slate grey · ΔE 48.8Gray · ΔE 50.2Dark slateblue · ΔE 51
Nearest named CSS colourBlack (#000000)ΔE 9.66, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B0C01
Analogous#011B19, #01031B
Triadic#1B0110, #101B01
Split complementary#1B0103, #1B1901
Tetradic#19011B, #1B0C01, #031B01

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0885E0
Lighter +30%#0667AF
Lighter +20%#054A7D
Lighter +10%#032D4C
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00101C
Less saturated −25%#050F17

Channel breakdown

R1
G16
B27
Red1 (0.4%)
Green16 (6.3%)
Blue27 (10.6%)
Hue205.38°
Saturation (HSL)92.86%
Lightness5.49%
Dominant channelBlue
Hex per channelR 01 · G 10 · B 1B

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Every value on this page was computed from “01101b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.