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Recognised as Colour

#12838B

  • #12838B
  • Cyan
  • Dark
  • Nearest: Teal

#12838B is a cyan with RGB values 18, 131, 139 and HSL 184°, 77%, 31%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Teal.

Colour values

#12838B#12838B
HEX#12838B
RGBrgb(18, 131, 139)
RGB (0–1)0.0706, 0.5137, 0.5451
RGB percentages7.1%, 51.4%, 54.5%
HSLhsl(184, 77.1%, 30.8%)
HSV / HSBhsv(184, 87.1%, 54.5%)
CMYK87.1%, 5.8%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,213,323
CSS custom property--colour: #12838B;

Brightness & contrast

Relative luminance0.18225WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.65:1
Contrast with white4.52:1WCAG normal text: AA
Contrast with black4.65:1WCAG normal text: AA
Greyscale equivalent#6C6C6C
Inverted#ED7C74

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#787D8Cno red cones; affects about 1% of men; ΔE 27.5 from the original
Deuteranopia#68718Bno green cones; the most common form, about 1% of men; ΔE 28.7 from the original
Tritanopia#008985no blue cones; rare, and affects men and women equally; ΔE 8.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.52:1WCAG large text: AAA
Contrast with black, large text4.65:1WCAG large text: AAA

Named colours

Teal · ΔE 5.4Dark cyan · ΔE 6.6Cadetblue · ΔE 13.9Light seagreen · ΔE 20.9Slate grey · ΔE 23.8Light slate grey · ΔE 24.3
Nearest named CSS colourTeal (#008080)ΔE 5.44, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8B1A12
Analogous#128B57, #12468B
Triadic#8B1283, #838B12
Split complementary#8B1246, #8B5612
Tetradic#57128B, #8B1A12, #468B12

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7BE6EE
Lighter +30%#4EDEE8
Lighter +20%#21D5E2
Lighter +10%#18AEB8
Darker −10%#0C585E
Darker −20%#062E31
Darker −30%#000304
Darker −40%#000000
More saturated +25%#00939D
Less saturated −25%#267277

Channel breakdown

R18
G131
B139
Red18 (7.1%)
Green131 (51.4%)
Blue139 (54.5%)
Hue183.97°
Saturation (HSL)77.07%
Lightness30.78%
Dominant channelBlue
Hex per channelR 12 · G 83 · B 8B

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Every value on this page was computed from “12838b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.