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Colour

#00038B

  • #00038B
  • Blue
  • Dark
  • Nearest: Dark blue

#00038B is a blue with RGB values 0, 3, 139 and HSL 239°, 100%, 27%. It is a dark colour, so white text on it reaches 15.2:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#00038B#00038B
HEX#00038B
RGBrgb(0, 3, 139)
RGB (0–1)0, 0.0118, 0.5451
RGB percentages0%, 1.2%, 54.5%
HSLhsl(238.7, 100%, 27.3%)
HSV / HSBhsv(238.7, 100%, 54.5%)
CMYK100%, 97.8%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer907
CSS custom property--colour: #00038B;

Brightness & contrast

Relative luminance0.01929WCAG 2.x, 0 is black and 1 is white
Perceived brightness47 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.15:1
Contrast with white15.15:1WCAG normal text: AAA
Contrast with black1.39:1WCAG normal text: Fail
Greyscale equivalent#0C0C0C
Inverted#FFFC74

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002D8Eno red cones; affects about 1% of men; ΔE 25 from the original
Deuteranopia#001E89no green cones; the most common form, about 1% of men; ΔE 15.5 from the original
Tritanopia#00384Fno blue cones; rare, and affects men and women equally; ΔE 75.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.15:1WCAG large text: AAA
Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Dark blue · ΔE 1.3Navy · ΔE 4.4Indigo · ΔE 15.9Midnight blue · ΔE 25.6Rebecca purple · ΔE 28.2Medium blue · ΔE 31.1
Nearest named CSS colourDark blue (#00008B)ΔE 1.3, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8B8800
Analogous#00498B, #42008B
Triadic#8B0003, #038B00
Split complementary#8B4300, #488B00
Tetradic#8B0049, #8B8800, #008B43

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#585CFF
Lighter +30%#252AFF
Lighter +20%#0005F1
Lighter +10%#0004BE
Darker −10%#000258
Darker −20%#000125
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00038B
Less saturated −25%#11147A

Channel breakdown

R0
G3
B139
Red0 (0%)
Green3 (1.2%)
Blue139 (54.5%)
Hue238.71°
Saturation (HSL)100%
Lightness27.25%
Dominant channelBlue
Hex per channelR 00 · G 03 · B 8B

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Every value on this page was computed from “00038b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.