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Colour

#00387E

  • #00387E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#00387E is a blue with RGB values 0, 56, 126 and HSL 213°, 100%, 25%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00387E#00387E
HEX#00387E
RGBrgb(0, 56, 126)
RGB (0–1)0, 0.2196, 0.4941
RGB percentages0%, 22%, 49.4%
HSLhsl(213.3, 100%, 24.7%)
HSV / HSBhsv(213.3, 100%, 49.4%)
CMYK100%, 55.6%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,462
CSS custom property--colour: #00387E;

Brightness & contrast

Relative luminance0.04335WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.25:1
Contrast with white11.25:1WCAG normal text: AAA
Contrast with black1.87:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#FFC781

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004080no red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#00367Dno green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#004A55no blue cones; rare, and affects men and women equally; ΔE 43.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.25:1WCAG large text: AAA
Contrast with black, large text1.87:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.7Midnight blue · ΔE 20.7Rebecca purple · ΔE 30.3Slate blue · ΔE 33.2Royal blue · ΔE 33.7Steel blue · ΔE 35.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.7, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7E4600
Analogous#00777E, #07007E
Triadic#7E0038, #387E00
Split complementary#7E0700, #777E00
Tetradic#7E0077, #7E4600, #007E07

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4B9BFF
Lighter +30%#187FFF
Lighter +20%#0065E4
Lighter +10%#004FB1
Darker −10%#00214B
Darker −20%#000B18
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00387E
Less saturated −25%#103A6E

Channel breakdown

R0
G56
B126
Red0 (0%)
Green56 (22%)
Blue126 (49.4%)
Hue213.33°
Saturation (HSL)100%
Lightness24.71%
Dominant channelBlue
Hex per channelR 00 · G 38 · B 7E

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Every value on this page was computed from “00387e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.