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Colour

#00287C

  • #00287C
  • Blue
  • Dark
  • Nearest: Midnight blue

#00287C is a blue with RGB values 0, 40, 124 and HSL 221°, 100%, 24%. It is a dark colour, so white text on it reaches 13.2:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#00287C#00287C
HEX#00287C
RGBrgb(0, 40, 124)
RGB (0–1)0, 0.1569, 0.4863
RGB percentages0%, 15.7%, 48.6%
HSLhsl(220.6, 100%, 24.3%)
HSV / HSBhsv(220.6, 100%, 48.6%)
CMYK100%, 67.7%, 0%, 51.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,364
CSS custom property--colour: #00287C;

Brightness & contrast

Relative luminance0.02973WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.17:1
Contrast with white13.17:1WCAG normal text: AAA
Contrast with black1.59:1WCAG normal text: Fail
Greyscale equivalent#262626
Inverted#FFD783

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00367Fno red cones; affects about 1% of men; ΔE 11 from the original
Deuteranopia#002B7Ano green cones; the most common form, about 1% of men; ΔE 3.8 from the original
Tritanopia#003F4Eno blue cones; rare, and affects men and women equally; ΔE 51.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.17:1WCAG large text: AAA
Contrast with black, large text1.59:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 8.3Dark slateblue · ΔE 13.9Rebecca purple · ΔE 22.7Indigo · ΔE 27.2Navy · ΔE 27.8Slate blue · ΔE 28.8
Nearest named CSS colourMidnight blue (#191970)ΔE 8.27, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7C5400
Analogous#00667C, #16007C
Triadic#7C0028, #287C00
Split complementary#7C1600, #667C00
Tetradic#7C0066, #7C5400, #007C16

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4984FF
Lighter +30%#1661FF
Lighter +20%#0049E2
Lighter +10%#0038AF
Darker −10%#001849
Darker −20%#000716
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00287C
Less saturated −25%#102E6D

Channel breakdown

R0
G40
B124
Red0 (0%)
Green40 (15.7%)
Blue124 (48.6%)
Hue220.65°
Saturation (HSL)100%
Lightness24.31%
Dominant channelBlue
Hex per channelR 00 · G 28 · B 7C

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Every value on this page was computed from “00287c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.