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Colour

#00256E

  • #00256E
  • Blue
  • Dark
  • Nearest: Midnight blue

#00256E is a blue with RGB values 0, 37, 110 and HSL 220°, 100%, 22%. It is a dark colour, so white text on it reaches 14.1:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#00256E#00256E
HEX#00256E
RGBrgb(0, 37, 110)
RGB (0–1)0, 0.1451, 0.4314
RGB percentages0%, 14.5%, 43.1%
HSLhsl(219.8, 100%, 21.6%)
HSV / HSBhsv(219.8, 100%, 43.1%)
CMYK100%, 66.4%, 0%, 56.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,582
CSS custom property--colour: #00256E;

Brightness & contrast

Relative luminance0.02449WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.1:1
Contrast with white14.1:1WCAG normal text: AAA
Contrast with black1.49:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#FFDA91

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003070no red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#00276Dno green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#003945no blue cones; rare, and affects men and women equally; ΔE 46.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.1:1WCAG large text: AAA
Contrast with black, large text1.49:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.9Dark slateblue · ΔE 14.5Rebecca purple · ΔE 26.9Indigo · ΔE 32.1Navy · ΔE 33.4Slate blue · ΔE 34
Nearest named CSS colourMidnight blue (#191970)ΔE 11.9, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6E4900
Analogous#005C6E, #12006E
Triadic#6E0025, #256E00
Split complementary#6E1200, #5C6E00
Tetradic#6E005C, #6E4900, #006E12

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3B7DFF
Lighter +30%#085BFF
Lighter +20%#0047D4
Lighter +10%#0036A1
Darker −10%#00143B
Darker −20%#000308
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00256E
Less saturated −25%#0E2A60

Channel breakdown

R0
G37
B110
Red0 (0%)
Green37 (14.5%)
Blue110 (43.1%)
Hue219.82°
Saturation (HSL)100%
Lightness21.57%
Dominant channelBlue
Hex per channelR 00 · G 25 · B 6E

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Every value on this page was computed from “00256e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.