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Recognised as Colour

#1A105B

  • #1A105B
  • Blue
  • Dark
  • Nearest: Midnight blue

#1A105B is a blue with RGB values 26, 16, 91 and HSL 248°, 70%, 21%. It is a dark colour, so white text on it reaches 16.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1A105B#1A105B
HEX#1A105B
RGBrgb(26, 16, 91)
RGB (0–1)0.102, 0.0627, 0.3569
RGB percentages10.2%, 6.3%, 35.7%
HSLhsl(248, 70.1%, 21%)
HSV / HSBhsv(248, 82.4%, 35.7%)
CMYK71.4%, 82.4%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,708,123
CSS custom property--colour: #1A105B;

Brightness & contrast

Relative luminance0.01346WCAG 2.x, 0 is black and 1 is white
Perceived brightness36 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.55:1
Contrast with white16.55:1WCAG normal text: AAA
Contrast with black1.27:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#E5EFA4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00225Dno red cones; affects about 1% of men; ΔE 15.4 from the original
Deuteranopia#001C5Ano green cones; the most common form, about 1% of men; ΔE 11.6 from the original
Tritanopia#002635no blue cones; rare, and affects men and women equally; ΔE 46.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.55:1WCAG large text: AAA
Contrast with black, large text1.27:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 8.3Dark slateblue · ΔE 19.6Rebecca purple · ΔE 25.4Indigo · ΔE 25.9Navy · ΔE 28.3Dark blue · ΔE 33.3
Nearest named CSS colourMidnight blue (#191970)ΔE 8.29, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#515B10
Analogous#102C5B, #40105B
Triadic#5B1A10, #105B1A
Split complementary#5B4010, #2C5B10
Tetradic#5B102B, #515B10, #105B40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6856E1
Lighter +30%#422ADA
Lighter +20%#331FB2
Lighter +10%#261886
Darker −10%#0E0830
Darker −20%#010104
Darker −30%#000000
Darker −40%#000000
More saturated +25%#100368
Less saturated −25%#241D4E

Channel breakdown

R26
G16
B91
Red26 (10.2%)
Green16 (6.3%)
Blue91 (35.7%)
Hue248°
Saturation (HSL)70.09%
Lightness20.98%
Dominant channelBlue
Hex per channelR 1A · G 10 · B 5B

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Every value on this page was computed from “1a105b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.