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Recognised as Colour

#2A3767

  • #2A3767
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2A3767 is a blue with RGB values 42, 55, 103 and HSL 227°, 42%, 28%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2A3767#2A3767
HEX#2A3767
RGBrgb(42, 55, 103)
RGB (0–1)0.1647, 0.2157, 0.4039
RGB percentages16.5%, 21.6%, 40.4%
HSLhsl(227.2, 42.1%, 28.4%)
HSV / HSBhsv(227.2, 59.2%, 40.4%)
CMYK59.2%, 46.6%, 0%, 59.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,766,695
CSS custom property--colour: #2A3767;

Brightness & contrast

Relative luminance0.04204WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.41:1
Contrast with white11.41:1WCAG normal text: AAA
Contrast with black1.84:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#D5C898

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#223D69no red cones; affects about 1% of men; ΔE 5.5 from the original
Deuteranopia#1A3766no green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#06424Ano blue cones; rare, and affects men and women equally; ΔE 32 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.41:1WCAG large text: AAA
Contrast with black, large text1.84:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20.7Midnight blue · ΔE 30.1Steel blue · ΔE 31.8Dark slate grey · ΔE 35.1Slate grey · ΔE 36.7Dim grey · ΔE 37.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.74, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#675A2A
Analogous#2A5667, #3C2A67
Triadic#672A37, #37672A
Split complementary#673B2A, #56672A
Tetradic#672A56, #675A2A, #2A673B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8D9BD0
Lighter +30%#687BC2
Lighter +20%#485EAF
Lighter +10%#394A8B
Darker −10%#1B2443
Darker −20%#0C101F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#182D79
Less saturated −25%#3C4155

Channel breakdown

R42
G55
B103
Red42 (16.5%)
Green55 (21.6%)
Blue103 (40.4%)
Hue227.21°
Saturation (HSL)42.07%
Lightness28.43%
Dominant channelBlue
Hex per channelR 2A · G 37 · B 67

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Every value on this page was computed from “2a3767” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.