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Recognised as Colour

#0A4165

  • #0A4165
  • Blue
  • Dark
  • Nearest: Dark slate grey

#0A4165 is a blue with RGB values 10, 65, 101 and HSL 204°, 82%, 22%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#0A4165#0A4165
HEX#0A4165
RGBrgb(10, 65, 101)
RGB (0–1)0.0392, 0.2549, 0.3961
RGB percentages3.9%, 25.5%, 39.6%
HSLhsl(203.7, 82%, 21.8%)
HSV / HSBhsv(203.7, 90.1%, 39.6%)
CMYK90.1%, 35.6%, 0%, 60.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer672,101
CSS custom property--colour: #0A4165;

Brightness & contrast

Relative luminance0.04785WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.73:1
Contrast with white10.73:1WCAG normal text: AAA
Contrast with black1.96:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#F5BE9A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#304267no red cones; affects about 1% of men; ΔE 7.6 from the original
Deuteranopia#233A64no green cones; the most common form, about 1% of men; ΔE 8.5 from the original
Tritanopia#004A4Eno blue cones; rare, and affects men and women equally; ΔE 23.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.73:1WCAG large text: AAA
Contrast with black, large text1.96:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 24.6Steel blue · ΔE 27.1Slate grey · ΔE 30.8Dim grey · ΔE 31.8Dark slateblue · ΔE 33.1Light slate grey · ΔE 33.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 24.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#652E0A
Analogous#0A655B, #0A1465
Triadic#650A41, #41650A
Split complementary#650A14, #655B0A
Tetradic#5B0A65, #652E0A, #14650A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4EAEED
Lighter +30%#1F99E9
Lighter +20%#137DC2
Lighter +10%#0F5F93
Darker −10%#052337
Darker −20%#010508
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00436F
Less saturated −25%#183E57

Channel breakdown

R10
G65
B101
Red10 (3.9%)
Green65 (25.5%)
Blue101 (39.6%)
Hue203.74°
Saturation (HSL)81.98%
Lightness21.76%
Dominant channelBlue
Hex per channelR 0A · G 41 · B 65

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Every value on this page was computed from “0a4165” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.