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Recognised as Colour

#1C4572

  • #1C4572
  • Blue
  • Dark
  • Nearest: Steel blue

#1C4572 is a blue with RGB values 28, 69, 114 and HSL 211°, 61%, 28%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#1C4572#1C4572
HEX#1C4572
RGBrgb(28, 69, 114)
RGB (0–1)0.1098, 0.2706, 0.4471
RGB percentages11%, 27.1%, 44.7%
HSLhsl(211.4, 60.6%, 27.8%)
HSV / HSBhsv(211.4, 75.4%, 44.7%)
CMYK75.4%, 39.5%, 0%, 55.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,852,786
CSS custom property--colour: #1C4572;

Brightness & contrast

Relative luminance0.05718WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.8:1
Contrast with white9.8:1WCAG normal text: AAA
Contrast with black2.14:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#E3BA8D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#304874no red cones; affects about 1% of men; ΔE 3.9 from the original
Deuteranopia#234071no green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#005056no blue cones; rare, and affects men and women equally; ΔE 29.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.8:1WCAG large text: AAA
Contrast with black, large text2.14:1WCAG large text: Fail

Named colours

Steel blue · ΔE 24.7Dark slateblue · ΔE 26.6Dark slate grey · ΔE 30Slate grey · ΔE 31.4Light slate grey · ΔE 33.5Dim grey · ΔE 34
Nearest named CSS colourSteel blue (#4682B4)ΔE 24.75, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#72491C
Analogous#1C7072, #1E1C72
Triadic#721C45, #45721C
Split complementary#721E1C, #70721C
Tetradic#721C70, #72491C, #1C721E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7BABDF
Lighter +30%#5290D5
Lighter +20%#3077C4
Lighter +10%#265E9B
Darker −10%#122C49
Darker −20%#081320
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0A4484
Less saturated −25%#2E4660

Channel breakdown

R28
G69
B114
Red28 (11%)
Green69 (27.1%)
Blue114 (44.7%)
Hue211.4°
Saturation (HSL)60.56%
Lightness27.84%
Dominant channelBlue
Hex per channelR 1C · G 45 · B 72

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Every value on this page was computed from “1c4572” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.