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Recognised as Colour

#2A1861

  • #2A1861
  • Blue
  • Dark
  • Nearest: Midnight blue

#2A1861 is a blue with RGB values 42, 24, 97 and HSL 255°, 60%, 24%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#2A1861#2A1861
HEX#2A1861
RGBrgb(42, 24, 97)
RGB (0–1)0.1647, 0.0941, 0.3804
RGB percentages16.5%, 9.4%, 38%
HSLhsl(254.8, 60.3%, 23.7%)
HSV / HSBhsv(254.8, 75.3%, 38%)
CMYK56.7%, 75.3%, 0%, 62%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,758,753
CSS custom property--colour: #2A1861;

Brightness & contrast

Relative luminance0.02009WCAG 2.x, 0 is black and 1 is white
Perceived brightness44 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.98:1
Contrast with white14.98:1WCAG normal text: AAA
Contrast with black1.4:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#D5E79E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002863no red cones; affects about 1% of men; ΔE 16.1 from the original
Deuteranopia#002560no green cones; the most common form, about 1% of men; ΔE 15.1 from the original
Tritanopia#142B3Ano blue cones; rare, and affects men and women equally; ΔE 43.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.98:1WCAG large text: AAA
Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 9.6Dark slateblue · ΔE 15.8Rebecca purple · ΔE 23Indigo · ΔE 26.3Navy · ΔE 30.5Purple · ΔE 32.9
Nearest named CSS colourMidnight blue (#191970)ΔE 9.64, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4F6118
Analogous#182A61, #4F1861
Triadic#612A18, #18612A
Split complementary#614F18, #2A6118
Tetradic#61182A, #4F6118, #18614F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#866BDA
Lighter +30%#6542D0
Lighter +20%#4D2CB3
Lighter +10%#3C228A
Darker −10%#180E38
Darker −20%#07040F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#220970
Less saturated −25%#322752

Channel breakdown

R42
G24
B97
Red42 (16.5%)
Green24 (9.4%)
Blue97 (38%)
Hue254.79°
Saturation (HSL)60.33%
Lightness23.73%
Dominant channelBlue
Hex per channelR 2A · G 18 · B 61

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Every value on this page was computed from “2a1861” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.