Nerdulator> put something in

Recognised as Colour

#1D5575

  • #1D5575
  • Blue
  • Dark
  • Nearest: Steel blue

#1D5575 is a blue with RGB values 29, 85, 117 and HSL 202°, 60%, 29%. It is a dark colour, so white text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#1D5575#1D5575
HEX#1D5575
RGBrgb(29, 85, 117)
RGB (0–1)0.1137, 0.3333, 0.4588
RGB percentages11.4%, 33.3%, 45.9%
HSLhsl(201.8, 60.3%, 28.6%)
HSV / HSBhsv(201.8, 75.2%, 45.9%)
CMYK75.2%, 27.4%, 0%, 54.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,922,421
CSS custom property--colour: #1D5575;

Brightness & contrast

Relative luminance0.08043WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.05:1
Contrast with white8.05:1WCAG normal text: AAA
Contrast with black2.61:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#E2AA8A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#465576no red cones; affects about 1% of men; ΔE 10.5 from the original
Deuteranopia#3A4C74no green cones; the most common form, about 1% of men; ΔE 11.8 from the original
Tritanopia#005D60no blue cones; rare, and affects men and women equally; ΔE 21.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.05:1WCAG large text: AAA
Contrast with black, large text2.61:1WCAG large text: Fail

Named colours

Steel blue · ΔE 20.5Dark slate grey · ΔE 20.6Slate grey · ΔE 23.2Light slate grey · ΔE 25.5Dim grey · ΔE 26.5Teal · ΔE 30.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 20.52, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#753D1D
Analogous#1D7569, #1D2975
Triadic#751D55, #55751D
Split complementary#751D29, #75691D
Tetradic#691D75, #753D1D, #29751D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7FBCDF
Lighter +30%#56A7D5
Lighter +20%#3190C7
Lighter +10%#27739E
Darker −10%#13374C
Darker −20%#091A23
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0B5A87
Less saturated −25%#2F5063

Channel breakdown

R29
G85
B117
Red29 (11.4%)
Green85 (33.3%)
Blue117 (45.9%)
Hue201.82°
Saturation (HSL)60.27%
Lightness28.63%
Dominant channelBlue
Hex per channelR 1D · G 55 · B 75

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “1d5575” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.