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Colour

#10559A

  • #10559A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#10559A is a blue with RGB values 16, 85, 154 and HSL 210°, 81%, 33%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#10559A#10559A
HEX#10559A
RGBrgb(16, 85, 154)
RGB (0–1)0.0627, 0.3333, 0.6039
RGB percentages6.3%, 33.3%, 60.4%
HSLhsl(210, 81.2%, 33.3%)
HSV / HSBhsv(210, 89.6%, 60.4%)
CMYK89.6%, 44.8%, 0%, 39.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,070,490
CSS custom property--colour: #10559A;

Brightness & contrast

Relative luminance0.0894WCAG 2.x, 0 is black and 1 is white
Perceived brightness83.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.53:1
Contrast with white7.53:1WCAG normal text: AAA
Contrast with black2.79:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#EFAA65

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#315B9Dno red cones; affects about 1% of men; ΔE 4.4 from the original
Deuteranopia#134F99no green cones; the most common form, about 1% of men; ΔE 4.8 from the original
Tritanopia#006670no blue cones; rare, and affects men and women equally; ΔE 41.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.53:1WCAG large text: AAA
Contrast with black, large text2.79:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20Steel blue · ΔE 22.7Cornflower blue · ΔE 26.9Dodgerblue · ΔE 31.1Royal blue · ΔE 31.7Midnight blue · ΔE 32.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9A5510
Analogous#109A9A, #10109A
Triadic#9A1055, #559A10
Split complementary#9A1010, #9A9A10
Tetradic#9A109A, #9A5510, #109A10

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#84BBF2
Lighter +30%#56A2ED
Lighter +20%#2788E9
Lighter +10%#156EC8
Darker −10%#0B3B6C
Darker −20%#06223E
Darker −30%#02080F
Darker −40%#000000
More saturated +25%#0055AA
Less saturated −25%#255585

Channel breakdown

R16
G85
B154
Red16 (6.3%)
Green85 (33.3%)
Blue154 (60.4%)
Hue210°
Saturation (HSL)81.18%
Lightness33.33%
Dominant channelBlue
Hex per channelR 10 · G 55 · B 9A

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Every value on this page was computed from “10559a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.