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Recognised as Colour

#010A17

  • #010A17
  • Blue
  • Dark
  • Nearest: Black

#010A17 is a blue with RGB values 1, 10, 23 and HSL 215°, 92%, 5%. It is a dark colour, so white text on it reaches 19.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#010A17#010A17
HEX#010A17
RGBrgb(1, 10, 23)
RGB (0–1)0.0039, 0.0392, 0.0902
RGB percentages0.4%, 3.9%, 9%
HSLhsl(215.5, 91.7%, 4.7%)
HSV / HSBhsv(215.5, 95.7%, 9%)
CMYK95.7%, 56.5%, 0%, 91%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer68,119
CSS custom property--colour: #010A17;

Brightness & contrast

Relative luminance0.00285WCAG 2.x, 0 is black and 1 is white
Perceived brightness10.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.87:1
Contrast with white19.87:1WCAG normal text: AAA
Contrast with black1.06:1WCAG normal text: Fail
Greyscale equivalent#090909
Inverted#FEF5E8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#050B18no red cones; affects about 1% of men; ΔE 1 from the original
Deuteranopia#030817no green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#000D0Fno blue cones; rare, and affects men and women equally; ΔE 6.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.87:1WCAG large text: AAA
Contrast with black, large text1.06:1WCAG large text: Fail

Named colours

Black · ΔE 8.1Dark slate grey · ΔE 31.3Dim grey · ΔE 42.5Slate grey · ΔE 50.4Dark slateblue · ΔE 51.5Gray · ΔE 51.6
Nearest named CSS colourBlack (#000000)ΔE 8.15, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#170E01
Analogous#011517, #030117
Triadic#17010A, #0A1701
Split complementary#170301, #151701
Tetradic#170115, #170E01, #011703

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0A5FDA
Lighter +30%#074AAA
Lighter +20%#053479
Lighter +10%#031F48
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000A18
Less saturated −25%#040B14

Channel breakdown

R1
G10
B23
Red1 (0.4%)
Green10 (3.9%)
Blue23 (9%)
Hue215.45°
Saturation (HSL)91.67%
Lightness4.71%
Dominant channelBlue
Hex per channelR 01 · G 0A · B 17

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Every value on this page was computed from “010a17” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.