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Colour

#003F97

  • #003F97
  • Blue
  • Dark
  • Nearest: Dark slateblue

#003F97 is a blue with RGB values 0, 63, 151 and HSL 215°, 100%, 30%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003F97#003F97
HEX#003F97
RGBrgb(0, 63, 151)
RGB (0–1)0, 0.2471, 0.5922
RGB percentages0%, 24.7%, 59.2%
HSLhsl(215, 100%, 29.6%)
HSV / HSBhsv(215, 100%, 59.2%)
CMYK100%, 58.3%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,279
CSS custom property--colour: #003F97;

Brightness & contrast

Relative luminance0.05789WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.73:1
Contrast with white9.73:1WCAG normal text: AAA
Contrast with black2.16:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#FFC068

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004B9Ano red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#003E95no green cones; the most common form, about 1% of men; ΔE 0.7 from the original
Tritanopia#005564no blue cones; rare, and affects men and women equally; ΔE 52.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.73:1WCAG large text: AAA
Contrast with black, large text2.16:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.6Midnight blue · ΔE 18Royal blue · ΔE 23.6Slate blue · ΔE 23.7Rebecca purple · ΔE 24.2Medium purple · ΔE 31.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.58, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#975800
Analogous#008A97, #0D0097
Triadic#97003F, #3F9700
Split complementary#970D00, #8A9700
Tetradic#97008A, #975800, #00970D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#64A5FF
Lighter +30%#3187FF
Lighter +20%#006AFD
Lighter +10%#0054CA
Darker −10%#002A64
Darker −20%#001431
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003F97
Less saturated −25%#134284

Channel breakdown

R0
G63
B151
Red0 (0%)
Green63 (24.7%)
Blue151 (59.2%)
Hue214.97°
Saturation (HSL)100%
Lightness29.61%
Dominant channelBlue
Hex per channelR 00 · G 3F · B 97

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Every value on this page was computed from “003f97” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.