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Recognised as Colour

#12499D

  • #12499D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#12499D is a blue with RGB values 18, 73, 157 and HSL 216°, 79%, 34%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#12499D#12499D
HEX#12499D
RGBrgb(18, 73, 157)
RGB (0–1)0.0706, 0.2863, 0.6157
RGB percentages7.1%, 28.6%, 61.6%
HSLhsl(216.3, 79.4%, 34.3%)
HSV / HSBhsv(216.3, 88.5%, 61.6%)
CMYK88.5%, 53.5%, 0%, 38.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,198,493
CSS custom property--colour: #12499D;

Brightness & contrast

Relative luminance0.07328WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.52:1
Contrast with white8.52:1WCAG normal text: AAA
Contrast with black2.47:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#EDB662

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0753A0no red cones; affects about 1% of men; ΔE 7.5 from the original
Deuteranopia#00479Bno green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#005E6Cno blue cones; rare, and affects men and women equally; ΔE 49.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.52:1WCAG large text: AAA
Contrast with black, large text2.47:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13Midnight blue · ΔE 22.8Royal blue · ΔE 23.5Slate blue · ΔE 24.7Rebecca purple · ΔE 26.8Cornflower blue · ΔE 30.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9D6612
Analogous#128F9D, #20129D
Triadic#9D1249, #499D12
Split complementary#9D2012, #8F9D12
Tetradic#9D128F, #9D6612, #129D20

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#89B3F2
Lighter +30%#5C95EC
Lighter +20%#2E77E7
Lighter +10%#175ECB
Darker −10%#0D346F
Darker −20%#081E41
Darker −30%#020914
Darker −40%#000000
More saturated +25%#0045AF
Less saturated −25%#284E87

Channel breakdown

R18
G73
B157
Red18 (7.1%)
Green73 (28.6%)
Blue157 (61.6%)
Hue216.26°
Saturation (HSL)79.43%
Lightness34.31%
Dominant channelBlue
Hex per channelR 12 · G 49 · B 9D

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Every value on this page was computed from “12499d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.