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Recognised as Colour

#2B3A5A

  • #2B3A5A
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2B3A5A is a blue with RGB values 43, 58, 90 and HSL 221°, 35%, 26%. It is a dark colour, so white text on it reaches 11.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2B3A5A#2B3A5A
HEX#2B3A5A
RGBrgb(43, 58, 90)
RGB (0–1)0.1686, 0.2275, 0.3529
RGB percentages16.9%, 22.7%, 35.3%
HSLhsl(220.9, 35.3%, 26.1%)
HSV / HSBhsv(220.9, 52.2%, 35.3%)
CMYK52.2%, 35.6%, 0%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,832,986
CSS custom property--colour: #2B3A5A;

Brightness & contrast

Relative luminance0.04278WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.32:1
Contrast with white11.32:1WCAG normal text: AAA
Contrast with black1.86:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#D4C5A5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2E3D5Bno red cones; affects about 1% of men; ΔE 1.9 from the original
Deuteranopia#293859no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#174146no blue cones; rare, and affects men and women equally; ΔE 21.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.32:1WCAG large text: AAA
Contrast with black, large text1.86:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 24.4Dim grey · ΔE 29.2Slate grey · ΔE 30.8Dark slateblue · ΔE 31.1Steel blue · ΔE 31.1Black · ΔE 32.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 24.38, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A4B2B
Analogous#2B525A, #342B5A
Triadic#5A2B3A, #3A5A2B
Split complementary#5A332B, #525A2B
Tetradic#5A2B52, #5A4B2B, #2B5A33

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8A9DC7
Lighter +30%#6781B7
Lighter +20%#4C669F
Lighter +10%#3B507D
Darker −10%#1B2437
Darker −20%#0A0E15
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1A346B
Less saturated −25%#3C4049

Channel breakdown

R43
G58
B90
Red43 (16.9%)
Green58 (22.7%)
Blue90 (35.3%)
Hue220.85°
Saturation (HSL)35.34%
Lightness26.08%
Dominant channelBlue
Hex per channelR 2B · G 3A · B 5A

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Every value on this page was computed from “2b3a5a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.