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Colour

#0A2355

  • #0A2355
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0A2355 is a blue with RGB values 10, 35, 85 and HSL 220°, 79%, 19%. It is a dark colour, so white text on it reaches 15.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0A2355#0A2355
HEX#0A2355
RGBrgb(10, 35, 85)
RGB (0–1)0.0392, 0.1373, 0.3333
RGB percentages3.9%, 13.7%, 33.3%
HSLhsl(220, 78.9%, 18.6%)
HSV / HSBhsv(220, 88.2%, 33.3%)
CMYK88.2%, 58.8%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer664,405
CSS custom property--colour: #0A2355;

Brightness & contrast

Relative luminance0.01922WCAG 2.x, 0 is black and 1 is white
Perceived brightness39.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.17:1
Contrast with white15.17:1WCAG normal text: AAA
Contrast with black1.38:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#F5DCAA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002957no red cones; affects about 1% of men; ΔE 5.3 from the original
Deuteranopia#002354no green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#002F38no blue cones; rare, and affects men and women equally; ΔE 32.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.17:1WCAG large text: AAA
Contrast with black, large text1.38:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 22.9Midnight blue · ΔE 25.7Black · ΔE 38.2Rebecca purple · ΔE 38.3Steel blue · ΔE 40.7Dark slate grey · ΔE 41
Nearest named CSS colourDark slateblue (#483D8B)ΔE 22.95, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#553C0A
Analogous#0A4955, #170A55
Triadic#550A23, #23550A
Split complementary#55170A, #49550A
Tetradic#550A48, #553C0A, #0A5516

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#427AE9
Lighter +30%#1A5BDE
Lighter +20%#1549B0
Lighter +10%#0F3683
Darker −10%#051027
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00205F
Less saturated −25%#162749

Channel breakdown

R10
G35
B85
Red10 (3.9%)
Green35 (13.7%)
Blue85 (33.3%)
Hue220°
Saturation (HSL)78.95%
Lightness18.63%
Dominant channelBlue
Hex per channelR 0A · G 23 · B 55

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Every value on this page was computed from “0a2355” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.