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Recognised as Colour

#003865

  • #003865
  • Blue
  • Dark
  • Nearest: Dark slateblue

#003865 is a blue with RGB values 0, 56, 101 and HSL 207°, 100%, 20%. It is a dark colour, so white text on it reaches 12:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003865#003865
HEX#003865
RGBrgb(0, 56, 101)
RGB (0–1)0, 0.2196, 0.3961
RGB percentages0%, 22%, 39.6%
HSLhsl(206.7, 100%, 19.8%)
HSV / HSBhsv(206.7, 100%, 39.6%)
CMYK100%, 44.6%, 0%, 60.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,437
CSS custom property--colour: #003865;

Brightness & contrast

Relative luminance0.03768WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.98:1
Contrast with white11.98:1WCAG normal text: AAA
Contrast with black1.75:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#FFC79A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#213B67no red cones; affects about 1% of men; ΔE 4.3 from the original
Deuteranopia#0E3364no green cones; the most common form, about 1% of men; ΔE 4.9 from the original
Tritanopia#004349no blue cones; rare, and affects men and women equally; ΔE 29.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.98:1WCAG large text: AAA
Contrast with black, large text1.75:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 27Steel blue · ΔE 30.4Dark slate grey · ΔE 32Midnight blue · ΔE 35.1Slate grey · ΔE 36.6Dim grey · ΔE 37.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 26.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#652D00
Analogous#006560, #000665
Triadic#650038, #386500
Split complementary#650005, #656000
Tetradic#600065, #652D00, #066500

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#32A4FF
Lighter +30%#008DFE
Lighter +20%#0071CB
Lighter +10%#005498
Darker −10%#001C32
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003865
Less saturated −25%#0D3758

Channel breakdown

R0
G56
B101
Red0 (0%)
Green56 (22%)
Blue101 (39.6%)
Hue206.73°
Saturation (HSL)100%
Lightness19.8%
Dominant channelBlue
Hex per channelR 00 · G 38 · B 65

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Every value on this page was computed from “hex 003865” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.