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Recognised as Colour

#003D5F

  • #003D5F
  • Blue
  • Dark
  • Nearest: Dark slate grey

#003D5F is a blue with RGB values 0, 61, 95 and HSL 201°, 100%, 19%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#003D5F#003D5F
HEX#003D5F
RGBrgb(0, 61, 95)
RGB (0–1)0, 0.2392, 0.3725
RGB percentages0%, 23.9%, 37.3%
HSLhsl(201.5, 100%, 18.6%)
HSV / HSBhsv(201.5, 100%, 37.3%)
CMYK100%, 35.8%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,711
CSS custom property--colour: #003D5F;

Brightness & contrast

Relative luminance0.04164WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.46:1
Contrast with white11.46:1WCAG normal text: AAA
Contrast with black1.83:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#FFC2A0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2C3E60no red cones; affects about 1% of men; ΔE 7.8 from the original
Deuteranopia#20365Eno green cones; the most common form, about 1% of men; ΔE 9.1 from the original
Tritanopia#004549no blue cones; rare, and affects men and women equally; ΔE 22.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.46:1WCAG large text: AAA
Contrast with black, large text1.83:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 24Steel blue · ΔE 29.2Slate grey · ΔE 32.1Dim grey · ΔE 32.3Dark slateblue · ΔE 34.6Light slate grey · ΔE 34.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 23.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F2200
Analogous#005F52, #000D5F
Triadic#5F003D, #3D5F00
Split complementary#5F000D, #5F5200
Tetradic#52005F, #5F2200, #0D5F00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2CB3FF
Lighter +30%#009FF8
Lighter +20%#007EC5
Lighter +10%#005E92
Darker −10%#001C2C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003D5F
Less saturated −25%#0C3A53

Channel breakdown

R0
G61
B95
Red0 (0%)
Green61 (23.9%)
Blue95 (37.3%)
Hue201.47°
Saturation (HSL)100%
Lightness18.63%
Dominant channelBlue
Hex per channelR 00 · G 3D · B 5F

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Every value on this page was computed from “003d5f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.