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Recognised as Colour

#030657

  • #030657
  • Blue
  • Dark
  • Nearest: Midnight blue

#030657 is a blue with RGB values 3, 6, 87 and HSL 238°, 93%, 18%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#030657#030657
HEX#030657
RGBrgb(3, 6, 87)
RGB (0–1)0.0118, 0.0235, 0.3412
RGB percentages1.2%, 2.4%, 34.1%
HSLhsl(237.9, 93.3%, 17.6%)
HSV / HSBhsv(237.9, 96.6%, 34.1%)
CMYK96.6%, 93.1%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer198,231
CSS custom property--colour: #030657;

Brightness & contrast

Relative luminance0.00838WCAG 2.x, 0 is black and 1 is white
Perceived brightness29.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.99:1
Contrast with white17.99:1WCAG normal text: AAA
Contrast with black1.17:1WCAG normal text: Fail
Greyscale equivalent#0B0B0B
Inverted#FCF9A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001B59no red cones; affects about 1% of men; ΔE 15.9 from the original
Deuteranopia#001256no green cones; the most common form, about 1% of men; ΔE 9.4 from the original
Tritanopia#002231no blue cones; rare, and affects men and women equally; ΔE 50.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.99:1WCAG large text: AAA
Contrast with black, large text1.17:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 8.8Navy · ΔE 24.2Indigo · ΔE 24.2Dark slateblue · ΔE 24.5Rebecca purple · ΔE 27.5Dark blue · ΔE 29.4
Nearest named CSS colourMidnight blue (#191970)ΔE 8.78, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#575403
Analogous#033057, #2A0357
Triadic#570306, #065703
Split complementary#572A03, #305703
Tetradic#570330, #575403, #03572A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2E35F8
Lighter +30%#0810EB
Lighter +20%#060DBA
Lighter +10%#050988
Darker −10%#010326
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00035A
Less saturated −25%#0E104C

Channel breakdown

R3
G6
B87
Red3 (1.2%)
Green6 (2.4%)
Blue87 (34.1%)
Hue237.86°
Saturation (HSL)93.33%
Lightness17.65%
Dominant channelBlue
Hex per channelR 03 · G 06 · B 57

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Every value on this page was computed from “hex 030657” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.