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Recognised as Colour

#2B434F

  • #2B434F
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2B434F is a blue with RGB values 43, 67, 79 and HSL 200°, 30%, 24%. It is a dark colour, so white text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2B434F#2B434F
HEX#2B434F
RGBrgb(43, 67, 79)
RGB (0–1)0.1686, 0.2627, 0.3098
RGB percentages16.9%, 26.3%, 31%
HSLhsl(200, 29.5%, 23.9%)
HSV / HSBhsv(200, 45.6%, 31%)
CMYK45.6%, 15.2%, 0%, 69%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,835,279
CSS custom property--colour: #2B434F;

Brightness & contrast

Relative luminance0.05092WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.4:1
Contrast with white10.4:1WCAG normal text: AAA
Contrast with black2.02:1WCAG normal text: Fail
Greyscale equivalent#3F3F3F
Inverted#D4BCB0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3D4250no red cones; affects about 1% of men; ΔE 7.2 from the original
Deuteranopia#383E4Fno green cones; the most common form, about 1% of men; ΔE 7.7 from the original
Tritanopia#1D4647no blue cones; rare, and affects men and women equally; ΔE 9.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.4:1WCAG large text: AAA
Contrast with black, large text2.02:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.8Dim grey · ΔE 20.9Slate grey · ΔE 26.1Gray · ΔE 29Light slate grey · ΔE 29.1Black · ΔE 29.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.84, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4F372B
Analogous#2B4F49, #2B314F
Triadic#4F2B43, #434F2B
Split complementary#4F2B31, #4F492B
Tetradic#492B4F, #4F372B, #314F2B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#88ACBE
Lighter +30%#6795AC
Lighter +20%#4F7B91
Lighter +10%#3D5F70
Darker −10%#19272E
Darker −20%#070B0D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1C485E
Less saturated −25%#3A3E40

Channel breakdown

R43
G67
B79
Red43 (16.9%)
Green67 (26.3%)
Blue79 (31%)
Hue200°
Saturation (HSL)29.51%
Lightness23.92%
Dominant channelBlue
Hex per channelR 2B · G 43 · B 4F

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Every value on this page was computed from “2b434f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.