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Recognised as Colour

#0A3774

  • #0A3774
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0A3774 is a blue with RGB values 10, 55, 116 and HSL 215°, 84%, 25%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0A3774#0A3774
HEX#0A3774
RGBrgb(10, 55, 116)
RGB (0–1)0.0392, 0.2157, 0.4549
RGB percentages3.9%, 21.6%, 45.5%
HSLhsl(214.5, 84.1%, 24.7%)
HSV / HSBhsv(214.5, 91.4%, 45.5%)
CMYK91.4%, 52.6%, 0%, 54.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer669,556
CSS custom property--colour: #0A3774;

Brightness & contrast

Relative luminance0.04058WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.59:1
Contrast with white11.59:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#F5C88B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0F3E76no red cones; affects about 1% of men; ΔE 5.2 from the original
Deuteranopia#003473no green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#004650no blue cones; rare, and affects men and women equally; ΔE 38.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.59:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 16.9Midnight blue · ΔE 24.6Steel blue · ΔE 33Rebecca purple · ΔE 34.1Slate blue · ΔE 37.9Royal blue · ΔE 38.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 16.89, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#74470A
Analogous#0A6C74, #120A74
Triadic#740A37, #37740A
Split complementary#74120A, #6C740A
Tetradic#740A6C, #74470A, #0A7412

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#599AF1
Lighter +30%#2A7DED
Lighter +20%#1264D2
Lighter +10%#0E4DA3
Darker −10%#062145
Darker −20%#020A16
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00357E
Less saturated −25%#1A3964

Channel breakdown

R10
G55
B116
Red10 (3.9%)
Green55 (21.6%)
Blue116 (45.5%)
Hue214.53°
Saturation (HSL)84.13%
Lightness24.71%
Dominant channelBlue
Hex per channelR 0A · G 37 · B 74

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Every value on this page was computed from “0a3774” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.