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Recognised as Colour

#123E2D

  • #123E2D
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#123E2D is a cyan with RGB values 18, 62, 45 and HSL 157°, 55%, 16%. It is a dark colour, so white text on it reaches 12:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#123E2D#123E2D
HEX#123E2D
RGBrgb(18, 62, 45)
RGB (0–1)0.0706, 0.2431, 0.1765
RGB percentages7.1%, 24.3%, 17.6%
HSLhsl(156.8, 55%, 15.7%)
HSV / HSBhsv(156.8, 71%, 24.3%)
CMYK71%, 0%, 27.4%, 75.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,195,565
CSS custom property--colour: #123E2D;

Brightness & contrast

Relative luminance0.03763WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.98:1
Contrast with white11.98:1WCAG normal text: AAA
Contrast with black1.75:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#EDC1D2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3D392Cno red cones; affects about 1% of men; ΔE 19.3 from the original
Deuteranopia#37352Eno green cones; the most common form, about 1% of men; ΔE 19.4 from the original
Tritanopia#003E39no blue cones; rare, and affects men and women equally; ΔE 8.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.98:1WCAG large text: AAA
Contrast with black, large text1.75:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.3Dim grey · ΔE 30Teal · ΔE 30.6Black · ΔE 30.9Dark olivegreen · ΔE 31.3Dark cyan · ΔE 34.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.3, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3E1223
Analogous#123E17, #12393E
Triadic#2D123E, #3E2D12
Split complementary#3E1239, #3E1712
Tetradic#17123E, #3E1223, #393E12

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#50CC9C
Lighter +30%#34B583
Lighter +20%#298D66
Lighter +10%#1D664A
Darker −10%#071610
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#08482F
Less saturated −25%#1C342B

Channel breakdown

R18
G62
B45
Red18 (7.1%)
Green62 (24.3%)
Blue45 (17.6%)
Hue156.82°
Saturation (HSL)55%
Lightness15.69%
Dominant channelGreen
Hex per channelR 12 · G 3E · B 2D

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Every value on this page was computed from “123e2d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.