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Recognised as Colour

#23287A

  • #23287A
  • Blue
  • Dark
  • Nearest: Midnight blue

#23287A is a blue with RGB values 35, 40, 122 and HSL 237°, 55%, 31%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#23287A#23287A
HEX#23287A
RGBrgb(35, 40, 122)
RGB (0–1)0.1373, 0.1569, 0.4784
RGB percentages13.7%, 15.7%, 47.8%
HSLhsl(236.6, 55.4%, 30.8%)
HSV / HSBhsv(236.6, 71.3%, 47.8%)
CMYK71.3%, 67.2%, 0%, 52.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,304,122
CSS custom property--colour: #23287A;

Brightness & contrast

Relative luminance0.0328WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.68:1
Contrast with white12.68:1WCAG normal text: AAA
Contrast with black1.66:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#DCD785

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00377Dno red cones; affects about 1% of men; ΔE 13.5 from the original
Deuteranopia#002F78no green cones; the most common form, about 1% of men; ΔE 9.2 from the original
Tritanopia#003D4Dno blue cones; rare, and affects men and women equally; ΔE 50 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.68:1WCAG large text: AAA
Contrast with black, large text1.66:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 7.5Dark slateblue · ΔE 11Rebecca purple · ΔE 19.9Indigo · ΔE 25.6Slate blue · ΔE 27.9Navy · ΔE 28.2
Nearest named CSS colourMidnight blue (#191970)ΔE 7.52, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7A7523
Analogous#23537A, #4A237A
Triadic#7A2328, #287A23
Split complementary#7A4A23, #537A23
Tetradic#7A2354, #7A7523, #237A4A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8B90DE
Lighter +30%#646AD2
Lighter +20%#3C44C7
Lighter +10%#2E35A2
Darker −10%#181B52
Darker −20%#0C0E2B
Darker −30%#010103
Darker −40%#000000
More saturated +25%#0F178E
Less saturated −25%#373966

Channel breakdown

R35
G40
B122
Red35 (13.7%)
Green40 (15.7%)
Blue122 (47.8%)
Hue236.55°
Saturation (HSL)55.41%
Lightness30.78%
Dominant channelBlue
Hex per channelR 23 · G 28 · B 7A

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Every value on this page was computed from “23287a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.