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Recognised as Colour

#283F92

  • #283F92
  • Blue
  • Dark
  • Nearest: Dark slateblue

#283F92 is a blue with RGB values 40, 63, 146 and HSL 227°, 57%, 36%. It is a dark colour, so white text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#283F92#283F92
HEX#283F92
RGBrgb(40, 63, 146)
RGB (0–1)0.1569, 0.2471, 0.5725
RGB percentages15.7%, 24.7%, 57.3%
HSLhsl(227, 57%, 36.5%)
HSV / HSBhsv(227, 72.6%, 57.3%)
CMYK72.6%, 56.8%, 0%, 42.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,637,714
CSS custom property--colour: #283F92;

Brightness & contrast

Relative luminance0.06081WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.48:1
Contrast with white9.48:1WCAG normal text: AAA
Contrast with black2.22:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#D7C06D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004B95no red cones; affects about 1% of men; ΔE 11.1 from the original
Deuteranopia#004190no green cones; the most common form, about 1% of men; ΔE 5.7 from the original
Tritanopia#005362no blue cones; rare, and affects men and women equally; ΔE 49.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.48:1WCAG large text: AAA
Contrast with black, large text2.22:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 8.2Midnight blue · ΔE 17.5Rebecca purple · ΔE 22.1Slate blue · ΔE 23.6Royal blue · ΔE 25.3Medium purple · ΔE 29.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 8.21, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#927B28
Analogous#287492, #462892
Triadic#92283F, #3F9228
Split complementary#924628, #749228
Tetradic#922874, #927B28, #289246

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A1B0E5
Lighter +30%#798EDA
Lighter +20%#516CCF
Lighter +10%#3350BA
Darker −10%#1D2E6A
Darker −20%#121C42
Darker −30%#070B1A
Darker −40%#000000
More saturated +25%#1132A9
Less saturated −25%#3F4C7B

Channel breakdown

R40
G63
B146
Red40 (15.7%)
Green63 (24.7%)
Blue146 (57.3%)
Hue226.98°
Saturation (HSL)56.99%
Lightness36.47%
Dominant channelBlue
Hex per channelR 28 · G 3F · B 92

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Every value on this page was computed from “283f92” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.