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Recognised as Colour

#1B525F

  • #1B525F
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#1B525F is a cyan with RGB values 27, 82, 95 and HSL 191°, 56%, 24%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1B525F#1B525F
HEX#1B525F
RGBrgb(27, 82, 95)
RGB (0–1)0.1059, 0.3216, 0.3725
RGB percentages10.6%, 32.2%, 37.3%
HSLhsl(191.5, 55.7%, 23.9%)
HSV / HSBhsv(191.5, 71.6%, 37.3%)
CMYK71.6%, 13.7%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,790,559
CSS custom property--colour: #1B525F;

Brightness & contrast

Relative luminance0.07094WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.68:1
Contrast with white8.68:1WCAG normal text: AAA
Contrast with black2.42:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#E4ADA0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#494F60no red cones; affects about 1% of men; ΔE 15.2 from the original
Deuteranopia#40485Fno green cones; the most common form, about 1% of men; ΔE 16.2 from the original
Tritanopia#005756no blue cones; rare, and affects men and women equally; ΔE 11.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.68:1WCAG large text: AAA
Contrast with black, large text2.42:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.3Dim grey · ΔE 22.2Teal · ΔE 23Slate grey · ΔE 23.7Light slate grey · ΔE 26.3Dark cyan · ΔE 27
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.26, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F281B
Analogous#1B5F4A, #1B305F
Triadic#5F1B52, #525F1B
Split complementary#5F1B30, #5F4A1B
Tetradic#4A1B5F, #5F281B, #305F1B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#70C3D6
Lighter +30%#48B2CB
Lighter +20%#3297AE
Lighter +10%#267487
Darker −10%#103037
Darker −20%#040D10
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0C5B6E
Less saturated −25%#2A4950

Channel breakdown

R27
G82
B95
Red27 (10.6%)
Green82 (32.2%)
Blue95 (37.3%)
Hue191.47°
Saturation (HSL)55.74%
Lightness23.92%
Dominant channelBlue
Hex per channelR 1B · G 52 · B 5F

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Every value on this page was computed from “1b525f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.