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Recognised as Colour

#05598A

  • #05598A
  • Blue
  • Dark
  • Nearest: Steel blue

#05598A is a blue with RGB values 5, 89, 138 and HSL 202°, 93%, 28%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#05598A#05598A
HEX#05598A
RGBrgb(5, 89, 138)
RGB (0–1)0.0196, 0.349, 0.5412
RGB percentages2%, 34.9%, 54.1%
HSLhsl(202.1, 93%, 28%)
HSV / HSBhsv(202.1, 96.4%, 54.1%)
CMYK96.4%, 35.5%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer350,602
CSS custom property--colour: #05598A;

Brightness & contrast

Relative luminance0.09012WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.49:1
Contrast with white7.49:1WCAG normal text: AAA
Contrast with black2.8:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#FAA675

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#415B8Cno red cones; affects about 1% of men; ΔE 9.3 from the original
Deuteranopia#2F5089no green cones; the most common form, about 1% of men; ΔE 10.7 from the original
Tritanopia#00656Bno blue cones; rare, and affects men and women equally; ΔE 30 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.49:1WCAG large text: AAA
Contrast with black, large text2.8:1WCAG large text: Fail

Named colours

Steel blue · ΔE 16.5Slate grey · ΔE 28.3Light slate grey · ΔE 29.9Dark slateblue · ΔE 30.8Dark slate grey · ΔE 31.2Cornflower blue · ΔE 32.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 16.53, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8A3605
Analogous#058A79, #05168A
Triadic#8A0559, #598A05
Split complementary#8A0516, #8A7905
Tetradic#79058A, #8A3605, #178A05

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#62C1F9
Lighter +30%#30AEF8
Lighter +20%#0998EC
Lighter +10%#0779BB
Darker −10%#033959
Darker −20%#011A28
Darker −30%#000000
Darker −40%#000000
More saturated +25%#005A8F
Less saturated −25%#175478

Channel breakdown

R5
G89
B138
Red5 (2%)
Green89 (34.9%)
Blue138 (54.1%)
Hue202.11°
Saturation (HSL)93.01%
Lightness28.04%
Dominant channelBlue
Hex per channelR 05 · G 59 · B 8A

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Every value on this page was computed from “05598a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.