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Recognised as Colour

#2D3B58

  • #2D3B58
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2D3B58 is a blue with RGB values 45, 59, 88 and HSL 220°, 32%, 26%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2D3B58#2D3B58
HEX#2D3B58
RGBrgb(45, 59, 88)
RGB (0–1)0.1765, 0.2314, 0.3451
RGB percentages17.6%, 23.1%, 34.5%
HSLhsl(220.5, 32.3%, 26.1%)
HSV / HSBhsv(220.5, 48.9%, 34.5%)
CMYK48.9%, 33%, 0%, 65.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,964,312
CSS custom property--colour: #2D3B58;

Brightness & contrast

Relative luminance0.0439WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.18:1
Contrast with white11.18:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#D2C4A7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#303D59no red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#2C3957no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#1D4145no blue cones; rare, and affects men and women equally; ΔE 19.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.18:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 22.4Dim grey · ΔE 27.6Slate grey · ΔE 29.7Steel blue · ΔE 31.3Black · ΔE 31.6Light slate grey · ΔE 32.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 22.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#584A2D
Analogous#2D5158, #352D58
Triadic#582D3B, #3B582D
Split complementary#58352D, #51582D
Tetradic#582D51, #584A2D, #2D5835

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8D9FC4
Lighter +30%#6B82B3
Lighter +20%#50689B
Lighter +10%#3E527A
Darker −10%#1C2436
Darker −20%#0A0E15
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1C3569
Less saturated −25%#3E4147

Channel breakdown

R45
G59
B88
Red45 (17.6%)
Green59 (23.1%)
Blue88 (34.5%)
Hue220.47°
Saturation (HSL)32.33%
Lightness26.08%
Dominant channelBlue
Hex per channelR 2D · G 3B · B 58

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Every value on this page was computed from “2d3b58” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.