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Recognised as Colour

#10238D

  • #10238D
  • Blue
  • Dark
  • Nearest: Midnight blue

#10238D is a blue with RGB values 16, 35, 141 and HSL 231°, 80%, 31%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#10238D#10238D
HEX#10238D
RGBrgb(16, 35, 141)
RGB (0–1)0.0627, 0.1373, 0.5529
RGB percentages6.3%, 13.7%, 55.3%
HSLhsl(230.9, 79.6%, 30.8%)
HSV / HSBhsv(230.9, 88.7%, 55.3%)
CMYK88.7%, 75.2%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,057,677
CSS custom property--colour: #10238D;

Brightness & contrast

Relative luminance0.03235WCAG 2.x, 0 is black and 1 is white
Perceived brightness55.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.75:1
Contrast with white12.75:1WCAG normal text: AAA
Contrast with black1.65:1WCAG normal text: Fail
Greyscale equivalent#272727
Inverted#EFDC72

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003990no red cones; affects about 1% of men; ΔE 17.2 from the original
Deuteranopia#002C8Bno green cones; the most common form, about 1% of men; ΔE 8.5 from the original
Tritanopia#004256no blue cones; rare, and affects men and women equally; ΔE 62.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.75:1WCAG large text: AAA
Contrast with black, large text1.65:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.9Navy · ΔE 15.3Indigo · ΔE 17.4Dark blue · ΔE 18.6Rebecca purple · ΔE 18.8Dark slateblue · ΔE 22.2
Nearest named CSS colourMidnight blue (#191970)ΔE 11.86, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D7A10
Analogous#10628D, #3B108D
Triadic#8D1023, #238D10
Split complementary#8D3B10, #628D10
Tetradic#8D1062, #8D7A10, #108D3B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#798BF0
Lighter +30%#4B64EB
Lighter +20%#1E3CE5
Lighter +10%#152EBB
Darker −10%#0B185F
Darker −20%#060C31
Darker −30%#000104
Darker −40%#000000
More saturated +25%#00189D
Less saturated −25%#243179

Channel breakdown

R16
G35
B141
Red16 (6.3%)
Green35 (13.7%)
Blue141 (55.3%)
Hue230.88°
Saturation (HSL)79.62%
Lightness30.78%
Dominant channelBlue
Hex per channelR 10 · G 23 · B 8D

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Every value on this page was computed from “10238d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.