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Recognised as Colour

#282D64

  • #282D64
  • Blue
  • Dark
  • Nearest: Dark slateblue

#282D64 is a blue with RGB values 40, 45, 100 and HSL 235°, 43%, 27%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#282D64#282D64
HEX#282D64
RGBrgb(40, 45, 100)
RGB (0–1)0.1569, 0.1765, 0.3922
RGB percentages15.7%, 17.6%, 39.2%
HSLhsl(235, 42.9%, 27.5%)
HSV / HSBhsv(235, 60%, 39.2%)
CMYK60%, 55%, 0%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,633,060
CSS custom property--colour: #282D64;

Brightness & contrast

Relative luminance0.03248WCAG 2.x, 0 is black and 1 is white
Perceived brightness53 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.73:1
Contrast with white12.73:1WCAG normal text: AAA
Contrast with black1.65:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#D7D29B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0F3566no red cones; affects about 1% of men; ΔE 9.4 from the original
Deuteranopia#043063no green cones; the most common form, about 1% of men; ΔE 8.1 from the original
Tritanopia#063944no blue cones; rare, and affects men and women equally; ΔE 35.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.73:1WCAG large text: AAA
Contrast with black, large text1.65:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 16.6Midnight blue · ΔE 23.2Rebecca purple · ΔE 32.5Steel blue · ΔE 37.3Slate blue · ΔE 39.9Indigo · ΔE 40.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 16.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#645F28
Analogous#284B64, #412864
Triadic#64282D, #2D6428
Split complementary#644128, #4B6428
Tetradic#64284B, #645F28, #286441

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#888ED0
Lighter +30%#646CC1
Lighter +20%#454EAD
Lighter +10%#373D88
Darker −10%#191D40
Darker −20%#0B0C1B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#161E76
Less saturated −25%#3A3C53

Channel breakdown

R40
G45
B100
Red40 (15.7%)
Green45 (17.6%)
Blue100 (39.2%)
Hue235°
Saturation (HSL)42.86%
Lightness27.45%
Dominant channelBlue
Hex per channelR 28 · G 2D · B 64

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Every value on this page was computed from “282d64” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.