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Colour

#101F87

  • #101F87
  • Blue
  • Dark
  • Nearest: Midnight blue

#101F87 is a blue with RGB values 16, 31, 135 and HSL 232°, 79%, 30%. It is a dark colour, so white text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#101F87#101F87
HEX#101F87
RGBrgb(16, 31, 135)
RGB (0–1)0.0627, 0.1216, 0.5294
RGB percentages6.3%, 12.2%, 52.9%
HSLhsl(232.4, 78.8%, 29.6%)
HSV / HSBhsv(232.4, 88.1%, 52.9%)
CMYK88.1%, 77%, 0%, 47.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,056,647
CSS custom property--colour: #101F87;

Brightness & contrast

Relative luminance0.02839WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.39:1
Contrast with white13.39:1WCAG normal text: AAA
Contrast with black1.57:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#EFE078

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00358Ano red cones; affects about 1% of men; ΔE 17.1 from the original
Deuteranopia#002985no green cones; the most common form, about 1% of men; ΔE 9.3 from the original
Tritanopia#003E51no blue cones; rare, and affects men and women equally; ΔE 62.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.39:1WCAG large text: AAA
Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.4Navy · ΔE 14.8Indigo · ΔE 16.8Dark blue · ΔE 18.5Rebecca purple · ΔE 19Dark slateblue · ΔE 22.2
Nearest named CSS colourMidnight blue (#191970)ΔE 10.36, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#877810
Analogous#105A87, #3D1087
Triadic#87101F, #1F8710
Split complementary#873D10, #5A8710
Tetradic#87105A, #877810, #10873D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7484EF
Lighter +30%#475BE9
Lighter +20%#1B34E2
Lighter +10%#1529B5
Darker −10%#0B1559
Darker −20%#050A2C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001397
Less saturated −25%#232D74

Channel breakdown

R16
G31
B135
Red16 (6.3%)
Green31 (12.2%)
Blue135 (52.9%)
Hue232.44°
Saturation (HSL)78.81%
Lightness29.61%
Dominant channelBlue
Hex per channelR 10 · G 1F · B 87

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Every value on this page was computed from “101f87” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.