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Recognised as Colour

#1C286D

  • #1C286D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1C286D is a blue with RGB values 28, 40, 109 and HSL 231°, 59%, 27%. It is a dark colour, so white text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1C286D#1C286D
HEX#1C286D
RGBrgb(28, 40, 109)
RGB (0–1)0.1098, 0.1569, 0.4275
RGB percentages11%, 15.7%, 42.7%
HSLhsl(231.1, 59.1%, 26.9%)
HSV / HSBhsv(231.1, 74.3%, 42.7%)
CMYK74.3%, 63.3%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,845,357
CSS custom property--colour: #1C286D;

Brightness & contrast

Relative luminance0.02869WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.34:1
Contrast with white13.34:1WCAG normal text: AAA
Contrast with black1.57:1WCAG normal text: Fail
Greyscale equivalent#2A2A2A
Inverted#E3D792

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00336Fno red cones; affects about 1% of men; ΔE 10.6 from the original
Deuteranopia#002C6Cno green cones; the most common form, about 1% of men; ΔE 6.2 from the original
Tritanopia#003946no 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 text13.34:1WCAG large text: AAA
Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.5Midnight blue · ΔE 14Rebecca purple · ΔE 26.4Indigo · ΔE 33Slate blue · ΔE 34Navy · ΔE 35.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.48, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6D611C
Analogous#1C516D, #381C6D
Triadic#6D1C28, #286D1C
Split complementary#6D381C, #516D1C
Tetradic#6D1C51, #6D611C, #1C6D38

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7987DC
Lighter +30%#5063D2
Lighter +20%#3146BE
Lighter +10%#263796
Darker −10%#121944
Darker −20%#070A1C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0B1C7E
Less saturated −25%#2D345C

Channel breakdown

R28
G40
B109
Red28 (11%)
Green40 (15.7%)
Blue109 (42.7%)
Hue231.11°
Saturation (HSL)59.12%
Lightness26.86%
Dominant channelBlue
Hex per channelR 1C · G 28 · B 6D

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Every value on this page was computed from “1c286d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.