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Recognised as Colour

#12287D

  • #12287D
  • Blue
  • Dark
  • Nearest: Midnight blue

#12287D is a blue with RGB values 18, 40, 125 and HSL 228°, 75%, 28%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#12287D#12287D
HEX#12287D
RGBrgb(18, 40, 125)
RGB (0–1)0.0706, 0.1569, 0.4902
RGB percentages7.1%, 15.7%, 49%
HSLhsl(227.7, 74.8%, 28%)
HSV / HSBhsv(227.7, 85.6%, 49%)
CMYK85.6%, 68%, 0%, 51%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,190,013
CSS custom property--colour: #12287D;

Brightness & contrast

Relative luminance0.03127WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.92:1
Contrast with white12.92:1WCAG normal text: AAA
Contrast with black1.63:1WCAG normal text: Fail
Greyscale equivalent#292929
Inverted#EDD782

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003780no red cones; affects about 1% of men; ΔE 12.3 from the original
Deuteranopia#002C7Bno green cones; the most common form, about 1% of men; ΔE 5.2 from the original
Tritanopia#003F4Eno blue cones; rare, and affects men and women equally; ΔE 52.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.92:1WCAG large text: AAA
Contrast with black, large text1.63:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 7.3Dark slateblue · ΔE 13.1Rebecca purple · ΔE 21Indigo · ΔE 25.7Navy · ΔE 26.9Slate blue · ΔE 27.8
Nearest named CSS colourMidnight blue (#191970)ΔE 7.32, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7D6712
Analogous#125D7D, #32127D
Triadic#7D1228, #287D12
Split complementary#7D3212, #5D7D12
Tetradic#7D125D, #7D6712, #127D32

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#718AEA
Lighter +30%#4465E4
Lighter +20%#1F45D6
Lighter +10%#1836AA
Darker −10%#0C1A50
Darker −20%#050B24
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001D8F
Less saturated −25%#24336B

Channel breakdown

R18
G40
B125
Red18 (7.1%)
Green40 (15.7%)
Blue125 (49%)
Hue227.66°
Saturation (HSL)74.83%
Lightness28.04%
Dominant channelBlue
Hex per channelR 12 · G 28 · B 7D

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Every value on this page was computed from “12287d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.