Nerdulator> put something in

Recognised as Colour

#28224C

  • #28224C
  • Blue
  • Dark
  • Nearest: Dark slateblue

#28224C is a blue with RGB values 40, 34, 76 and HSL 249°, 38%, 22%. It is a dark colour, so white text on it reaches 14.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#28224C#28224C
HEX#28224C
RGBrgb(40, 34, 76)
RGB (0–1)0.1569, 0.1333, 0.298
RGB percentages15.7%, 13.3%, 29.8%
HSLhsl(248.6, 38.2%, 21.6%)
HSV / HSBhsv(248.6, 55.3%, 29.8%)
CMYK47.4%, 55.3%, 0%, 70.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,630,220
CSS custom property--colour: #28224C;

Brightness & contrast

Relative luminance0.02117WCAG 2.x, 0 is black and 1 is white
Perceived brightness42.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.75:1
Contrast with white14.75:1WCAG normal text: AAA
Contrast with black1.42:1WCAG normal text: Fail
Greyscale equivalent#262626
Inverted#D7DDB3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#10294Dno red cones; affects about 1% of men; ΔE 10.4 from the original
Deuteranopia#10274Bno green cones; the most common form, about 1% of men; ΔE 9.8 from the original
Tritanopia#1D2B33no blue cones; rare, and affects men and women equally; ΔE 26 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.75:1WCAG large text: AAA
Contrast with black, large text1.42:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 24.9Midnight blue · ΔE 29.5Black · ΔE 33.5Dark slate grey · ΔE 37.6Rebecca purple · ΔE 39.1Dim grey · ΔE 40.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 24.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#464C22
Analogous#22314C, #3D224C
Triadic#4C2822, #224C28
Split complementary#4C3D22, #314C22
Tetradic#4C2231, #464C22, #224C3D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8278C2
Lighter +30%#6254B3
Lighter +20%#4D4292
Lighter +10%#3B326F
Darker −10%#151229
Darker −20%#030206
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1E145A
Less saturated −25%#32303E

Channel breakdown

R40
G34
B76
Red40 (15.7%)
Green34 (13.3%)
Blue76 (29.8%)
Hue248.57°
Saturation (HSL)38.18%
Lightness21.57%
Dominant channelBlue
Hex per channelR 28 · G 22 · B 4C

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “28224c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.