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Recognised as Colour

#001997

  • #001997
  • Blue
  • Dark
  • Nearest: Dark blue

#001997 is a blue with RGB values 0, 25, 151 and HSL 230°, 100%, 30%. It is a dark colour, so white text on it reaches 13.2:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#001997#001997
HEX#001997
RGBrgb(0, 25, 151)
RGB (0–1)0, 0.098, 0.5922
RGB percentages0%, 9.8%, 59.2%
HSLhsl(230.1, 100%, 29.6%)
HSV / HSBhsv(230.1, 100%, 59.2%)
CMYK100%, 83.4%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,551
CSS custom property--colour: #001997;

Brightness & contrast

Relative luminance0.0293WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.24:1
Contrast with white13.24:1WCAG normal text: AAA
Contrast with black1.59:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#FFE668

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00379Ano red cones; affects about 1% of men; ΔE 21.5 from the original
Deuteranopia#002895no green cones; the most common form, about 1% of men; ΔE 11.6 from the original
Tritanopia#004259no blue cones; rare, and affects men and women equally; ΔE 72.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.24:1WCAG large text: AAA
Contrast with black, large text1.59:1WCAG large text: Fail

Named colours

Dark blue · ΔE 8Navy · ΔE 8.2Indigo · ΔE 16.3Midnight blue · ΔE 22.4Rebecca purple · ΔE 24.5Slate blue · ΔE 28.7
Nearest named CSS colourDark blue (#00008B)ΔE 8.03, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#977E00
Analogous#006597, #320097
Triadic#970019, #199700
Split complementary#973300, #659700
Tetradic#970065, #977E00, #009732

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#647EFF
Lighter +30%#3153FF
Lighter +20%#002AFD
Lighter +10%#0021CA
Darker −10%#001164
Darker −20%#000831
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001997
Less saturated −25%#132684

Channel breakdown

R0
G25
B151
Red0 (0%)
Green25 (9.8%)
Blue151 (59.2%)
Hue230.07°
Saturation (HSL)100%
Lightness29.61%
Dominant channelBlue
Hex per channelR 00 · G 19 · B 97

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Every value on this page was computed from “hex 001997” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.