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Recognised as Colour

#0A455D

  • #0A455D
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#0A455D is a cyan with RGB values 10, 69, 93 and HSL 197°, 81%, 20%. It is a dark colour, so white text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#0A455D#0A455D
HEX#0A455D
RGBrgb(10, 69, 93)
RGB (0–1)0.0392, 0.2706, 0.3647
RGB percentages3.9%, 27.1%, 36.5%
HSLhsl(197.3, 80.6%, 20.2%)
HSV / HSBhsv(197.3, 89.2%, 36.5%)
CMYK89.2%, 25.8%, 0%, 63.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer673,117
CSS custom property--colour: #0A455D;

Brightness & contrast

Relative luminance0.05111WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.38:1
Contrast with white10.38:1WCAG normal text: AAA
Contrast with black2.02:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#F5BAA2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#39445Eno red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#2E3D5Dno green cones; the most common form, about 1% of men; ΔE 12.4 from the original
Tritanopia#004C4Dno blue cones; rare, and affects men and women equally; ΔE 17.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.38:1WCAG large text: AAA
Contrast with black, large text2.02:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16.4Dim grey · ΔE 27.3Slate grey · ΔE 27.9Steel blue · ΔE 28.8Light slate grey · ΔE 30.6Teal · ΔE 31.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.44, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5D220A
Analogous#0A5D4B, #0A1C5D
Triadic#5D0A45, #455D0A
Split complementary#5D0A1C, #5D4B0A
Tetradic#4B0A5D, #5D220A, #1C5D0A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#48BCEB
Lighter +30%#1AABE6
Lighter +20%#1489B9
Lighter +10%#0F678B
Darker −10%#05232F
Darker −20%#000101
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004967
Less saturated −25%#174050

Channel breakdown

R10
G69
B93
Red10 (3.9%)
Green69 (27.1%)
Blue93 (36.5%)
Hue197.35°
Saturation (HSL)80.58%
Lightness20.2%
Dominant channelBlue
Hex per channelR 0A · G 45 · B 5D

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Every value on this page was computed from “0a455d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.