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Recognised as Colour

#282D4E

  • #282D4E
  • Blue
  • Dark
  • Nearest: Dark slate grey

#282D4E is a blue with RGB values 40, 45, 78 and HSL 232°, 32%, 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 slate grey.

Colour values

#282D4E#282D4E
HEX#282D4E
RGBrgb(40, 45, 78)
RGB (0–1)0.1569, 0.1765, 0.3059
RGB percentages15.7%, 17.6%, 30.6%
HSLhsl(232.1, 32.2%, 23.1%)
HSV / HSBhsv(232.1, 48.7%, 30.6%)
CMYK48.7%, 42.3%, 0%, 69.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,633,038
CSS custom property--colour: #282D4E;

Brightness & contrast

Relative luminance0.02878WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.33:1
Contrast with white13.33:1WCAG normal text: AAA
Contrast with black1.58:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#D7D2B1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#21314Fno red cones; affects about 1% of men; ΔE 4.6 from the original
Deuteranopia#1E2E4Dno green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#1B3439no 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 text13.33:1WCAG large text: AAA
Contrast with black, large text1.58:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 28.8Black · ΔE 29.8Dark slateblue · ΔE 29.9Dim grey · ΔE 33.5Slate grey · ΔE 36.3Steel blue · ΔE 36.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 28.75, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4E4928
Analogous#28404E, #36284E
Triadic#4E282D, #2D4E28
Split complementary#4E3628, #404E28
Tetradic#4E2840, #4E4928, #284E36

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#838BBF
Lighter +30%#616BAE
Lighter +20%#4B5491
Lighter +10%#394070
Darker −10%#171A2C
Darker −20%#05060B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#19225D
Less saturated −25%#37383F

Channel breakdown

R40
G45
B78
Red40 (15.7%)
Green45 (17.6%)
Blue78 (30.6%)
Hue232.11°
Saturation (HSL)32.2%
Lightness23.14%
Dominant channelBlue
Hex per channelR 28 · G 2D · B 4E

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Every value on this page was computed from “282d4e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.