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Recognised as Colour

#282D4D

  • #282D4D
  • Blue
  • Dark
  • Nearest: Dark slate grey

#282D4D is a blue with RGB values 40, 45, 77 and HSL 232°, 32%, 23%. It is a dark colour, so white text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#282D4D#282D4D
HEX#282D4D
RGBrgb(40, 45, 77)
RGB (0–1)0.1569, 0.1765, 0.302
RGB percentages15.7%, 17.6%, 30.2%
HSLhsl(231.9, 31.6%, 22.9%)
HSV / HSBhsv(231.9, 48.1%, 30.2%)
CMYK48.1%, 41.6%, 0%, 69.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,633,037
CSS custom property--colour: #282D4D;

Brightness & contrast

Relative luminance0.02864WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.35:1
Contrast with white13.35:1WCAG normal text: AAA
Contrast with black1.57:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#D7D2B2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#22314Eno red cones; affects about 1% of men; ΔE 4.4 from the original
Deuteranopia#1F2E4Cno green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#1C3339no blue cones; rare, and affects men and women equally; ΔE 20.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.35:1WCAG large text: AAA
Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 28.2Black · ΔE 29.3Dark slateblue · ΔE 30.6Dim grey · ΔE 33.1Slate grey · ΔE 36.1Steel blue · ΔE 36.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 28.19, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4D4828
Analogous#28404D, #36284D
Triadic#4D282D, #2D4D28
Split complementary#4D3528, #404D28
Tetradic#4D283F, #4D4828, #284D35

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#838BBE
Lighter +30%#616BAD
Lighter +20%#4B5490
Lighter +10%#39416F
Darker −10%#17192B
Darker −20%#05060A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#19225C
Less saturated −25%#37383E

Channel breakdown

R40
G45
B77
Red40 (15.7%)
Green45 (17.6%)
Blue77 (30.2%)
Hue231.89°
Saturation (HSL)31.62%
Lightness22.94%
Dominant channelBlue
Hex per channelR 28 · G 2D · B 4D

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Every value on this page was computed from “282d4d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.