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Recognised as Colour

#01123F

  • #01123F
  • Blue
  • Dark
  • Nearest: Midnight blue

#01123F is a blue with RGB values 1, 18, 63 and HSL 224°, 97%, 13%. It is a dark colour, so white text on it reaches 18.1:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#01123F#01123F
HEX#01123F
RGBrgb(1, 18, 63)
RGB (0–1)0.0039, 0.0706, 0.2471
RGB percentages0.4%, 7.1%, 24.7%
HSLhsl(223.5, 96.9%, 12.5%)
HSV / HSBhsv(223.5, 98.4%, 24.7%)
CMYK98.4%, 71.4%, 0%, 75.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer70,207
CSS custom property--colour: #01123F;

Brightness & contrast

Relative luminance0.00798WCAG 2.x, 0 is black and 1 is white
Perceived brightness25.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.11:1
Contrast with white18.11:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#FEEDC0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001940no red cones; affects about 1% of men; ΔE 6.5 from the original
Deuteranopia#00133Eno green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#001E26no blue cones; rare, and affects men and women equally; ΔE 31 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.11:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 27.4Dark slateblue · ΔE 28.9Black · ΔE 34.4Rebecca purple · ΔE 42.1Dark slate grey · ΔE 44.3Indigo · ΔE 46
Nearest named CSS colourMidnight blue (#191970)ΔE 27.38, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3F2E01
Analogous#01313F, #0F013F
Triadic#3F0112, #123F01
Split complementary#3F0F01, #313F01
Tetradic#3F0131, #3F2E01, #013F0F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1151FB
Lighter +30%#033DD6
Lighter +20%#032FA3
Lighter +10%#022071
Darker −10%#00040D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001240
Less saturated −25%#091637

Channel breakdown

R1
G18
B63
Red1 (0.4%)
Green18 (7.1%)
Blue63 (24.7%)
Hue223.55°
Saturation (HSL)96.88%
Lightness12.55%
Dominant channelBlue
Hex per channelR 01 · G 12 · B 3F

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Every value on this page was computed from “01123f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.