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Recognised as Colour

#282D4F

  • #282D4F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#282D4F is a blue with RGB values 40, 45, 79 and HSL 232°, 33%, 23%. 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

#282D4F#282D4F
HEX#282D4F
RGBrgb(40, 45, 79)
RGB (0–1)0.1569, 0.1765, 0.3098
RGB percentages15.7%, 17.6%, 31%
HSLhsl(232.3, 32.8%, 23.3%)
HSV / HSBhsv(232.3, 49.4%, 31%)
CMYK49.4%, 43%, 0%, 69%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,633,039
CSS custom property--colour: #282D4F;

Brightness & contrast

Relative luminance0.02892WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.3:1
Contrast with white13.3:1WCAG normal text: AAA
Contrast with black1.58:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#D7D2B0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#213150no red cones; affects about 1% of men; ΔE 4.6 from the original
Deuteranopia#1D2E4Eno green cones; the most common form, about 1% of men; ΔE 4.1 from the original
Tritanopia#1B343Ano blue cones; rare, and affects men and women equally; ΔE 21.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.3:1WCAG large text: AAA
Contrast with black, large text1.58:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 29.3Dark slate grey · ΔE 29.3Black · ΔE 30.4Dim grey · ΔE 34Slate grey · ΔE 36.6Midnight blue · ΔE 36.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 29.28, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4F4A28
Analogous#28404F, #37284F
Triadic#4F282D, #2D4F28
Split complementary#4F3728, #404F28
Tetradic#4F2840, #4F4A28, #284F36

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#838BC0
Lighter +30%#616BAF
Lighter +20%#4A5493
Lighter +10%#394071
Darker −10%#171A2D
Darker −20%#06060B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#19225E
Less saturated −25%#373840

Channel breakdown

R40
G45
B79
Red40 (15.7%)
Green45 (17.6%)
Blue79 (31%)
Hue232.31°
Saturation (HSL)32.77%
Lightness23.33%
Dominant channelBlue
Hex per channelR 28 · G 2D · B 4F

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Every value on this page was computed from “282d4f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.