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Colour

#001057

  • #001057
  • Blue
  • Dark
  • Nearest: Midnight blue

#001057 is a blue with RGB values 0, 16, 87 and HSL 229°, 100%, 17%. It is a dark colour, so white text on it reaches 17.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#001057#001057
HEX#001057
RGBrgb(0, 16, 87)
RGB (0–1)0, 0.0627, 0.3412
RGB percentages0%, 6.3%, 34.1%
HSLhsl(229, 100%, 17.1%)
HSV / HSBhsv(229, 100%, 34.1%)
CMYK100%, 81.6%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,183
CSS custom property--colour: #001057;

Brightness & contrast

Relative luminance0.01059WCAG 2.x, 0 is black and 1 is white
Perceived brightness31.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.33:1
Contrast with white17.33:1WCAG normal text: AAA
Contrast with black1.21:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#FFEFA8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001F59no red cones; affects about 1% of men; ΔE 12.5 from the original
Deuteranopia#001656no green cones; the most common form, about 1% of men; ΔE 5.8 from the original
Tritanopia#002533no blue cones; rare, and affects men and women equally; ΔE 45.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.33:1WCAG large text: AAA
Contrast with black, large text1.21:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.4Dark slateblue · ΔE 21.4Rebecca purple · ΔE 29.1Indigo · ΔE 29.6Navy · ΔE 30.3Dark blue · ΔE 35.4
Nearest named CSS colourMidnight blue (#191970)ΔE 10.43, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#574700
Analogous#003C57, #1C0057
Triadic#570010, #105700
Split complementary#571B00, #3C5700
Tetradic#57003B, #574700, #00571B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#244CFF
Lighter +30%#002CF0
Lighter +20%#0023BD
Lighter +10%#00198A
Darker −10%#000724
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001057
Less saturated −25%#0B174C

Channel breakdown

R0
G16
B87
Red0 (0%)
Green16 (6.3%)
Blue87 (34.1%)
Hue228.97°
Saturation (HSL)100%
Lightness17.06%
Dominant channelBlue
Hex per channelR 00 · G 10 · B 57

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Every value on this page was computed from “hex 001057” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.