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Recognised as Colour

#001757

  • #001757
  • Blue
  • Dark
  • Nearest: Midnight blue

#001757 is a blue with RGB values 0, 23, 87 and HSL 224°, 100%, 17%. It is a dark colour, so white text on it reaches 16.7:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#001757#001757
HEX#001757
RGBrgb(0, 23, 87)
RGB (0–1)0, 0.0902, 0.3412
RGB percentages0%, 9%, 34.1%
HSLhsl(224.1, 100%, 17.1%)
HSV / HSBhsv(224.1, 100%, 34.1%)
CMYK100%, 73.6%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,975
CSS custom property--colour: #001757;

Brightness & contrast

Relative luminance0.01301WCAG 2.x, 0 is black and 1 is white
Perceived brightness34.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.66:1
Contrast with white16.66:1WCAG normal text: AAA
Contrast with black1.26:1WCAG normal text: Fail
Greyscale equivalent#171717
Inverted#FFE8A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002259no red cones; affects about 1% of men; ΔE 9.3 from the original
Deuteranopia#001A56no green cones; the most common form, about 1% of men; ΔE 3.4 from the original
Tritanopia#002934no blue cones; rare, and affects men and women equally; ΔE 42.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.66:1WCAG large text: AAA
Contrast with black, large text1.26:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 14.7Dark slateblue · ΔE 20.2Rebecca purple · ΔE 31.4Indigo · ΔE 34.4Navy · ΔE 35.8Dark blue · ΔE 40.8
Nearest named CSS colourMidnight blue (#191970)ΔE 14.67, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#574000
Analogous#004257, #150057
Triadic#570017, #175700
Split complementary#571500, #425700
Tetradic#570042, #574000, #005715

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#245EFF
Lighter +30%#003FF0
Lighter +20%#0032BD
Lighter +10%#00248A
Darker −10%#000A24
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001757
Less saturated −25%#0B1C4C

Channel breakdown

R0
G23
B87
Red0 (0%)
Green23 (9%)
Blue87 (34.1%)
Hue224.14°
Saturation (HSL)100%
Lightness17.06%
Dominant channelBlue
Hex per channelR 00 · G 17 · B 57

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Every value on this page was computed from “hex 001757” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.