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Recognised as Colour

#1300A8

  • #1300A8
  • Blue
  • Dark
  • Nearest: Dark blue

#1300A8 is a blue with RGB values 19, 0, 168 and HSL 247°, 100%, 33%. It is a dark colour, so white text on it reaches 13.2:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#1300A8#1300A8
HEX#1300A8
RGBrgb(19, 0, 168)
RGB (0–1)0.0745, 0, 0.6588
RGB percentages7.5%, 0%, 65.9%
HSLhsl(246.8, 100%, 32.9%)
HSV / HSBhsv(246.8, 100%, 65.9%)
CMYK88.7%, 100%, 0%, 34.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,245,352
CSS custom property--colour: #1300A8;

Brightness & contrast

Relative luminance0.02966WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.18:1
Contrast with white13.18:1WCAG normal text: AAA
Contrast with black1.59:1WCAG normal text: Fail
Greyscale equivalent#101010
Inverted#ECFF57

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0038ACno red cones; affects about 1% of men; ΔE 29.4 from the original
Deuteranopia#0027A6no green cones; the most common form, about 1% of men; ΔE 19.1 from the original
Tritanopia#004461no blue cones; rare, and affects men and women equally; ΔE 85.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.18:1WCAG large text: AAA
Contrast with black, large text1.59:1WCAG large text: Fail

Named colours

Dark blue · ΔE 13.1Medium blue · ΔE 17.1Navy · ΔE 18.3Blue violet · ΔE 25.4Indigo · ΔE 25.5Dark violet · ΔE 27.9
Nearest named CSS colourDark blue (#00008B)ΔE 13.1, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#95A800
Analogous#0041A8, #6700A8
Triadic#A81300, #00A813
Split complementary#A86700, #41A800
Tetradic#A80041, #95A800, #00A867

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8575FF
Lighter +30%#5742FF
Lighter +20%#2A0FFF
Lighter +10%#1900DB
Darker −10%#0D0075
Darker −20%#070042
Darker −30%#02000F
Darker −40%#000000
More saturated +25%#1300A8
Less saturated −25%#231593

Channel breakdown

R19
G0
B168
Red19 (7.5%)
Green0 (0%)
Blue168 (65.9%)
Hue246.79°
Saturation (HSL)100%
Lightness32.94%
Dominant channelBlue
Hex per channelR 13 · G 00 · B A8

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Every value on this page was computed from “1300a8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.