Nerdulator> put something in

Recognised as Colour

#17599C

  • #17599C
  • Blue
  • Dark
  • Nearest: Steel blue

#17599C is a blue with RGB values 23, 89, 156 and HSL 210°, 74%, 35%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#17599C#17599C
HEX#17599C
RGBrgb(23, 89, 156)
RGB (0–1)0.0902, 0.349, 0.6118
RGB percentages9%, 34.9%, 61.2%
HSLhsl(210.2, 74.3%, 35.1%)
HSV / HSBhsv(210.2, 85.3%, 61.2%)
CMYK85.3%, 42.9%, 0%, 38.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,530,268
CSS custom property--colour: #17599C;

Brightness & contrast

Relative luminance0.09727WCAG 2.x, 0 is black and 1 is white
Perceived brightness87.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.13:1
Contrast with white7.13:1WCAG normal text: AAA
Contrast with black2.95:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#E8A663

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#375E9Fno red cones; affects about 1% of men; ΔE 4.5 from the original
Deuteranopia#1E529Bno green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#006973no blue cones; rare, and affects men and women equally; ΔE 39.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.13:1WCAG large text: AAA
Contrast with black, large text2.95:1WCAG large text: Fail

Named colours

Steel blue · ΔE 20.5Dark slateblue · ΔE 21.6Cornflower blue · ΔE 25.9Dodgerblue · ΔE 31Royal blue · ΔE 32.8Midnight blue · ΔE 34.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 20.46, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9C5A17
Analogous#179B9C, #18179C
Triadic#9C1759, #599C17
Split complementary#9C1817, #9B9C17
Tetradic#9C179B, #9C5A17, #179C18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#90BFEF
Lighter +30%#64A6E8
Lighter +20%#378CE2
Lighter +10%#1E72C8
Darker −10%#104070
Darker −20%#0A2643
Darker −30%#030D17
Darker −40%#000000
More saturated +25%#0159B2
Less saturated −25%#2D5986

Channel breakdown

R23
G89
B156
Red23 (9%)
Green89 (34.9%)
Blue156 (61.2%)
Hue210.23°
Saturation (HSL)74.3%
Lightness35.1%
Dominant channelBlue
Hex per channelR 17 · G 59 · B 9C

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 “17599c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.