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Recognised as Colour

#12277D

  • #12277D
  • Blue
  • Dark
  • Nearest: Midnight blue

#12277D is a blue with RGB values 18, 39, 125 and HSL 228°, 75%, 28%. It is a dark colour, so white text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#12277D#12277D
HEX#12277D
RGBrgb(18, 39, 125)
RGB (0–1)0.0706, 0.1529, 0.4902
RGB percentages7.1%, 15.3%, 49%
HSLhsl(228.2, 74.8%, 28%)
HSV / HSBhsv(228.2, 85.6%, 49%)
CMYK85.6%, 68.8%, 0%, 51%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,189,757
CSS custom property--colour: #12277D;

Brightness & contrast

Relative luminance0.0306WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.03:1
Contrast with white13.03:1WCAG normal text: AAA
Contrast with black1.61:1WCAG normal text: Fail
Greyscale equivalent#292929
Inverted#EDD882

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003680no red cones; affects about 1% of men; ΔE 12.2 from the original
Deuteranopia#002C7Bno green cones; the most common form, about 1% of men; ΔE 6 from the original
Tritanopia#003E4Eno 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 text13.03:1WCAG large text: AAA
Contrast with black, large text1.61:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 6.7Dark slateblue · ΔE 13.6Rebecca purple · ΔE 20.7Indigo · ΔE 25Navy · ΔE 26.1Slate blue · ΔE 27.6
Nearest named CSS colourMidnight blue (#191970)ΔE 6.69, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7D6812
Analogous#125C7D, #33127D
Triadic#7D1227, #277D12
Split complementary#7D3212, #5D7D12
Tetradic#7D125C, #7D6812, #127D32

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7188EA
Lighter +30%#4463E4
Lighter +20%#1F43D6
Lighter +10%#1835AA
Darker −10%#0C1950
Darker −20%#050B24
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001C8F
Less saturated −25%#24326B

Channel breakdown

R18
G39
B125
Red18 (7.1%)
Green39 (15.3%)
Blue125 (49%)
Hue228.22°
Saturation (HSL)74.83%
Lightness28.04%
Dominant channelBlue
Hex per channelR 12 · G 27 · B 7D

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Every value on this page was computed from “12277d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.