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Colour

#003DCB

  • #003DCB
  • Blue
  • Dark
  • Nearest: Dark blue

#003DCB is a blue with RGB values 0, 61, 203 and HSL 222°, 100%, 40%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#003DCB#003DCB
HEX#003DCB
RGBrgb(0, 61, 203)
RGB (0–1)0, 0.2392, 0.7961
RGB percentages0%, 23.9%, 79.6%
HSLhsl(222, 100%, 39.8%)
HSV / HSBhsv(222, 100%, 79.6%)
CMYK100%, 70%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,819
CSS custom property--colour: #003DCB;

Brightness & contrast

Relative luminance0.07649WCAG 2.x, 0 is black and 1 is white
Perceived brightness83 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.3:1
Contrast with white8.3:1WCAG normal text: AAA
Contrast with black2.53:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#FFC234

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0057CFno red cones; affects about 1% of men; ΔE 19.1 from the original
Deuteranopia#0045C8no green cones; the most common form, about 1% of men; ΔE 7.8 from the original
Tritanopia#00667Fno blue cones; rare, and affects men and women equally; ΔE 80 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.3:1WCAG large text: AAA
Contrast with black, large text2.53:1WCAG large text: Fail

Named colours

Dark blue · ΔE 21.9Medium slateblue · ΔE 22Slate blue · ΔE 23.1Royal blue · ΔE 24Navy · ΔE 24.2Indigo · ΔE 28.4
Nearest named CSS colourDark blue (#00008B)ΔE 21.93, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CB8E00
Analogous#00A3CB, #2800CB
Triadic#CB003D, #3DCB00
Split complementary#CB2800, #A3CB00
Tetradic#CB00A3, #CB8E00, #00CB28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#98B7FF
Lighter +30%#6593FF
Lighter +20%#3270FF
Lighter +10%#004CFE
Darker −10%#002E98
Darker −20%#001E65
Darker −30%#000F32
Darker −40%#000000
More saturated +25%#003DCB
Less saturated −25%#1947B2

Channel breakdown

R0
G61
B203
Red0 (0%)
Green61 (23.9%)
Blue203 (79.6%)
Hue221.97°
Saturation (HSL)100%
Lightness39.8%
Dominant channelBlue
Hex per channelR 00 · G 3D · B CB

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Every value on this page was computed from “003dcb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.