Nerdulator> put something in

Colour

#28344E

  • #28344E
  • Blue
  • Dark
  • Nearest: Dark slate grey

#28344E is a blue with RGB values 40, 52, 78 and HSL 221°, 32%, 23%. It is a dark colour, so white text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#28344E#28344E
HEX#28344E
RGBrgb(40, 52, 78)
RGB (0–1)0.1569, 0.2039, 0.3059
RGB percentages15.7%, 20.4%, 30.6%
HSLhsl(221.1, 32.2%, 23.1%)
HSV / HSBhsv(221.1, 48.7%, 30.6%)
CMYK48.7%, 33.3%, 0%, 69.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,634,830
CSS custom property--colour: #28344E;

Brightness & contrast

Relative luminance0.03457WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.42:1
Contrast with white12.42:1WCAG normal text: AAA
Contrast with black1.69:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#D7CBB1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2B364Fno red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#27334Dno green cones; the most common form, about 1% of men; ΔE 0.5 from the original
Tritanopia#1A393Dno blue cones; rare, and affects men and women equally; ΔE 17.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.42:1WCAG large text: AAA
Contrast with black, large text1.69:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 22.4Black · ΔE 28.1Dim grey · ΔE 28.8Slate grey · ΔE 32.2Steel blue · ΔE 34.8Dark slateblue · ΔE 34.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 22.36, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4E4228
Analogous#28474E, #2F284E
Triadic#4E2834, #344E28
Split complementary#4E2F28, #474E28
Tetradic#4E2847, #4E4228, #284E2F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8396BF
Lighter +30%#6179AE
Lighter +20%#4B6191
Lighter +10%#394A70
Darker −10%#171E2C
Darker −20%#05070B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#192F5D
Less saturated −25%#37393F

Channel breakdown

R40
G52
B78
Red40 (15.7%)
Green52 (20.4%)
Blue78 (30.6%)
Hue221.05°
Saturation (HSL)32.2%
Lightness23.14%
Dominant channelBlue
Hex per channelR 28 · G 34 · B 4E

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 “28344e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.