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Recognised as Colour

#100A49

  • #100A49
  • Blue
  • Dark
  • Nearest: Midnight blue

#100A49 is a blue with RGB values 16, 10, 73 and HSL 246°, 76%, 16%. 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

#100A49#100A49
HEX#100A49
RGBrgb(16, 10, 73)
RGB (0–1)0.0627, 0.0392, 0.2863
RGB percentages6.3%, 3.9%, 28.6%
HSLhsl(245.7, 75.9%, 16.3%)
HSV / HSBhsv(245.7, 86.3%, 28.6%)
CMYK78.1%, 86.3%, 0%, 71.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,051,209
CSS custom property--colour: #100A49;

Brightness & contrast

Relative luminance0.00808WCAG 2.x, 0 is black and 1 is white
Perceived brightness27.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.08:1
Contrast with white18.08:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#101010
Inverted#EFF5B6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00194Bno red cones; affects about 1% of men; ΔE 12.7 from the original
Deuteranopia#001348no green cones; the most common form, about 1% of men; ΔE 8.8 from the original
Tritanopia#001D29no blue cones; rare, and affects men and women equally; ΔE 41 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.08:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 16Dark slateblue · ΔE 24Rebecca purple · ΔE 32.3Indigo · ΔE 33.2Navy · ΔE 35.3Purple · ΔE 40.2
Nearest named CSS colourMidnight blue (#191970)ΔE 15.99, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#43490A
Analogous#0A2449, #2F0A49
Triadic#49100A, #0A4910
Split complementary#492F0A, #24490A
Tetradic#490A24, #43490A, #0A492F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4B3BE4
Lighter +30%#2D1CD0
Lighter +20%#2416A3
Lighter +10%#1A1076
Darker −10%#06041C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#080053
Less saturated −25%#18143F

Channel breakdown

R16
G10
B73
Red16 (6.3%)
Green10 (3.9%)
Blue73 (28.6%)
Hue245.71°
Saturation (HSL)75.9%
Lightness16.27%
Dominant channelBlue
Hex per channelR 10 · G 0A · B 49

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Every value on this page was computed from “100a49” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.