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Colour

#2A4043

  • #2A4043
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#2A4043 is a cyan with RGB values 42, 64, 67 and HSL 187°, 23%, 21%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2A4043#2A4043
HEX#2A4043
RGBrgb(42, 64, 67)
RGB (0–1)0.1647, 0.251, 0.2627
RGB percentages16.5%, 25.1%, 26.3%
HSLhsl(187.2, 22.9%, 21.4%)
HSV / HSBhsv(187.2, 37.3%, 26.3%)
CMYK37.3%, 4.5%, 0%, 73.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,768,963
CSS custom property--colour: #2A4043;

Brightness & contrast

Relative luminance0.04564WCAG 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 10.98:1
Contrast with white10.98:1WCAG normal text: AAA
Contrast with black1.91:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#D5BFBC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3D3E43no red cones; affects about 1% of men; ΔE 8.6 from the original
Deuteranopia#383B43no green cones; the most common form, about 1% of men; ΔE 8.5 from the original
Tritanopia#214241no blue cones; rare, and affects men and women equally; ΔE 4.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.98:1WCAG large text: AAA
Contrast with black, large text1.91:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 7.1Dim grey · ΔE 21Black · ΔE 27Slate grey · ΔE 28.6Gray · ΔE 29.5Teal · ΔE 31.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 7.11, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#432D2A
Analogous#2A433A, #2A3343
Triadic#432A40, #40432A
Split complementary#432A33, #433A2A
Tetradic#3A2A43, #432D2A, #33432A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#86AEB3
Lighter +30%#67999F
Lighter +20%#517C82
Lighter +10%#3E5E62
Darker −10%#162224
Darker −20%#030404
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1C4A51
Less saturated −25%#373737

Channel breakdown

R42
G64
B67
Red42 (16.5%)
Green64 (25.1%)
Blue67 (26.3%)
Hue187.2°
Saturation (HSL)22.94%
Lightness21.37%
Dominant channelBlue
Hex per channelR 2A · G 40 · B 43

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Every value on this page was computed from “2a4043” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.