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Recognised as Colour

#1033D8

  • #1033D8
  • Blue
  • Dark
  • Nearest: Medium blue

#1033D8 is a blue with RGB values 16, 51, 216 and HSL 230°, 86%, 45%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1033D8#1033D8
HEX#1033D8
RGBrgb(16, 51, 216)
RGB (0–1)0.0627, 0.2, 0.8471
RGB percentages6.3%, 20%, 84.7%
HSLhsl(229.5, 86.2%, 45.5%)
HSV / HSBhsv(229.5, 92.6%, 84.7%)
CMYK92.6%, 76.4%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,061,848
CSS custom property--colour: #1033D8;

Brightness & contrast

Relative luminance0.07436WCAG 2.x, 0 is black and 1 is white
Perceived brightness83.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.44:1
Contrast with white8.44:1WCAG normal text: AAA
Contrast with black2.49:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#EFCC27

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0057DDno red cones; affects about 1% of men; ΔE 25 from the original
Deuteranopia#0043D5no green cones; the most common form, about 1% of men; ΔE 13 from the original
Tritanopia#006684no blue cones; rare, and affects men and women equally; ΔE 90.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.44:1WCAG large text: AAA
Contrast with black, large text2.49:1WCAG large text: Fail

Named colours

Medium blue · ΔE 17.9Blue violet · ΔE 22.2Dark blue · ΔE 24.3Navy · ΔE 28.7Dark violet · ΔE 28.7Medium slateblue · ΔE 29.8
Nearest named CSS colourMedium blue (#0000CD)ΔE 17.91, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D8B510
Analogous#1097D8, #5110D8
Triadic#D81033, #33D810
Split complementary#D85110, #97D810
Tetradic#D81097, #D8B510, #10D851

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BAC5FA
Lighter +30%#8B9DF6
Lighter +20%#5B76F3
Lighter +10%#2C4EEF
Darker −10%#0C28A9
Darker −20%#091D79
Darker −30%#05114A
Darker −40%#02061A
More saturated +25%#0029E8
Less saturated −25%#2D46BB

Channel breakdown

R16
G51
B216
Red16 (6.3%)
Green51 (20%)
Blue216 (84.7%)
Hue229.5°
Saturation (HSL)86.21%
Lightness45.49%
Dominant channelBlue
Hex per channelR 10 · G 33 · B D8

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Every value on this page was computed from “1033d8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.