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Recognised as Colour

#05255F

  • #05255F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#05255F is a blue with RGB values 5, 37, 95 and HSL 219°, 90%, 20%. It is a dark colour, so white text on it reaches 14.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#05255F#05255F
HEX#05255F
RGBrgb(5, 37, 95)
RGB (0–1)0.0196, 0.1451, 0.3725
RGB percentages2%, 14.5%, 37.3%
HSLhsl(218.7, 90%, 19.6%)
HSV / HSBhsv(218.7, 94.7%, 37.3%)
CMYK94.7%, 61.1%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer337,247
CSS custom property--colour: #05255F;

Brightness & contrast

Relative luminance0.02182WCAG 2.x, 0 is black and 1 is white
Perceived brightness42.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.62:1
Contrast with white14.62:1WCAG normal text: AAA
Contrast with black1.44:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#FADAA0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002D61no red cones; affects about 1% of men; ΔE 6.8 from the original
Deuteranopia#00255Eno green cones; the most common form, about 1% of men; ΔE 1 from the original
Tritanopia#00343Eno blue cones; rare, and affects men and women equally; ΔE 37.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.62:1WCAG large text: AAA
Contrast with black, large text1.44:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 19Midnight blue · ΔE 21Rebecca purple · ΔE 34.2Indigo · ΔE 40.6Steel blue · ΔE 40.9Slate blue · ΔE 41.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.01, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F3F05
Analogous#05525F, #12055F
Triadic#5F0525, #255F05
Split complementary#5F1205, #525F05
Tetradic#5F0552, #5F3F05, #055F12

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3B7DF5
Lighter +30%#0D5EF0
Lighter +20%#0A4BC0
Lighter +10%#08388F
Darker −10%#02122F
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002464
Less saturated −25%#112953

Channel breakdown

R5
G37
B95
Red5 (2%)
Green37 (14.5%)
Blue95 (37.3%)
Hue218.67°
Saturation (HSL)90%
Lightness19.61%
Dominant channelBlue
Hex per channelR 05 · G 25 · B 5F

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Every value on this page was computed from “05255f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.