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Recognised as Colour

#12554D

  • #12554D
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#12554D is a cyan with RGB values 18, 85, 77 and HSL 173°, 65%, 20%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#12554D#12554D
HEX#12554D
RGBrgb(18, 85, 77)
RGB (0–1)0.0706, 0.3333, 0.302
RGB percentages7.1%, 33.3%, 30.2%
HSLhsl(172.8, 65%, 20.2%)
HSV / HSBhsv(172.8, 78.8%, 33.3%)
CMYK78.8%, 0%, 9.4%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,201,485
CSS custom property--colour: #12554D;

Brightness & contrast

Relative luminance0.07161WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.63:1
Contrast with white8.63:1WCAG normal text: AAA
Contrast with black2.43:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#EDAAB2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#51504Dno red cones; affects about 1% of men; ΔE 22.4 from the original
Deuteranopia#47494Eno green cones; the most common form, about 1% of men; ΔE 22.8 from the original
Tritanopia#005752no blue cones; rare, and affects men and women equally; ΔE 2.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.63:1WCAG large text: AAA
Contrast with black, large text2.43:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 11Teal · ΔE 18.8Dark cyan · ΔE 23Dim grey · ΔE 25.5Cadetblue · ΔE 29.8Slate grey · ΔE 30.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.95, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#55121A
Analogous#12552B, #123C55
Triadic#4D1255, #554D12
Split complementary#55123C, #552B12
Tetradic#2B1255, #55121A, #3C5512

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#57DCCC
Lighter +30%#2DD3BF
Lighter +20%#24A999
Lighter +10%#1B7F73
Darker −10%#092B27
Darker −20%#000101
Darker −30%#000000
Darker −40%#000000
More saturated +25%#056257
Less saturated −25%#1F4843

Channel breakdown

R18
G85
B77
Red18 (7.1%)
Green85 (33.3%)
Blue77 (30.2%)
Hue172.84°
Saturation (HSL)65.05%
Lightness20.2%
Dominant channelGreen
Hex per channelR 12 · G 55 · B 4D

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Every value on this page was computed from “12554d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.