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Colour

#05283C

  • #05283C
  • Blue
  • Dark
  • Nearest: Dark slate grey

#05283C is a blue with RGB values 5, 40, 60 and HSL 202°, 85%, 13%. It is a dark colour, so white text on it reaches 15.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#05283C#05283C
HEX#05283C
RGBrgb(5, 40, 60)
RGB (0–1)0.0196, 0.1569, 0.2353
RGB percentages2%, 15.7%, 23.5%
HSLhsl(201.8, 84.6%, 12.7%)
HSV / HSBhsv(201.8, 91.7%, 23.5%)
CMYK91.7%, 33.3%, 0%, 76.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer337,980
CSS custom property--colour: #05283C;

Brightness & contrast

Relative luminance0.01876WCAG 2.x, 0 is black and 1 is white
Perceived brightness36.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.27:1
Contrast with white15.27:1WCAG normal text: AAA
Contrast with black1.38:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#FAD7C3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1E283Dno red cones; affects about 1% of men; ΔE 6.5 from the original
Deuteranopia#17233Cno green cones; the most common form, about 1% of men; ΔE 7.6 from the original
Tritanopia#002D2Fno blue cones; rare, and affects men and women equally; ΔE 14.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.27:1WCAG large text: AAA
Contrast with black, large text1.38:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 22.2Black · ΔE 22.3Dim grey · ΔE 34Slate grey · ΔE 38.5Steel blue · ΔE 40.9Light slate grey · ΔE 41.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 22.16, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3C1905
Analogous#053C34, #050D3C
Triadic#3C0528, #283C05
Split complementary#3C050D, #3C3405
Tetradic#34053C, #3C1905, #0D3C05

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#21A2EC
Lighter +30%#1186C9
Lighter +20%#0D679A
Lighter +10%#09476B
Darker −10%#01090D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002941
Less saturated −25%#0D2634

Channel breakdown

R5
G40
B60
Red5 (2%)
Green40 (15.7%)
Blue60 (23.5%)
Hue201.82°
Saturation (HSL)84.62%
Lightness12.75%
Dominant channelBlue
Hex per channelR 05 · G 28 · B 3C

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Every value on this page was computed from “05283c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.