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Recognised as Colour

#12253D

  • #12253D
  • Blue
  • Dark
  • Nearest: Black

#12253D is a blue with RGB values 18, 37, 61 and HSL 213°, 54%, 15%. It is a dark colour, so white text on it reaches 15.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#12253D#12253D
HEX#12253D
RGBrgb(18, 37, 61)
RGB (0–1)0.0706, 0.1451, 0.2392
RGB percentages7.1%, 14.5%, 23.9%
HSLhsl(213.5, 54.4%, 15.5%)
HSV / HSBhsv(213.5, 70.5%, 23.9%)
CMYK70.5%, 39.3%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,189,181
CSS custom property--colour: #12253D;

Brightness & contrast

Relative luminance0.01789WCAG 2.x, 0 is black and 1 is white
Perceived brightness36.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.47:1
Contrast with white15.47:1WCAG normal text: AAA
Contrast with black1.36:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#EDDAC2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1B273Eno red cones; affects about 1% of men; ΔE 2.3 from the original
Deuteranopia#15223Dno green cones; the most common form, about 1% of men; ΔE 3.4 from the original
Tritanopia#002A2Eno blue cones; rare, and affects men and women equally; ΔE 17.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.47:1WCAG large text: AAA
Contrast with black, large text1.36:1WCAG large text: Fail

Named colours

Black · ΔE 22.8Dark slate grey · ΔE 25.5Dim grey · ΔE 34.9Dark slateblue · ΔE 38.4Slate grey · ΔE 39.3Steel blue · ΔE 41.2
Nearest named CSS colourBlack (#000000)ΔE 22.81, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3D2A12
Analogous#123B3D, #15123D
Triadic#3D1225, #253D12
Split complementary#3D1412, #3B3D12
Tetradic#3D123B, #3D2A12, #123D15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5086CB
Lighter +30%#356DB3
Lighter +20%#29558C
Lighter +10%#1E3D64
Darker −10%#060D16
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#082447
Less saturated −25%#1C2633

Channel breakdown

R18
G37
B61
Red18 (7.1%)
Green37 (14.5%)
Blue61 (23.9%)
Hue213.49°
Saturation (HSL)54.43%
Lightness15.49%
Dominant channelBlue
Hex per channelR 12 · G 25 · B 3D

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Every value on this page was computed from “12253d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.