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Colour

#003ACB

  • #003ACB
  • Blue
  • Dark
  • Nearest: Dark blue

#003ACB is a blue with RGB values 0, 58, 203 and HSL 223°, 100%, 40%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#003ACB#003ACB
HEX#003ACB
RGBrgb(0, 58, 203)
RGB (0–1)0, 0.2275, 0.7961
RGB percentages0%, 22.7%, 79.6%
HSLhsl(222.9, 100%, 39.8%)
HSV / HSBhsv(222.9, 100%, 79.6%)
CMYK100%, 71.4%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,051
CSS custom property--colour: #003ACB;

Brightness & contrast

Relative luminance0.07338WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.51:1
Contrast with white8.51:1WCAG normal text: AAA
Contrast with black2.47:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#FFC534

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0056CFno red cones; affects about 1% of men; ΔE 20.5 from the original
Deuteranopia#0043C8no green cones; the most common form, about 1% of men; ΔE 8.5 from the original
Tritanopia#00647Fno blue cones; rare, and affects men and women equally; ΔE 80.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.51:1WCAG large text: AAA
Contrast with black, large text2.47:1WCAG large text: Fail

Named colours

Dark blue · ΔE 21.1Medium slateblue · ΔE 23.3Navy · ΔE 23.8Slate blue · ΔE 24.8Royal blue · ΔE 26.2Blue violet · ΔE 28.2
Nearest named CSS colourDark blue (#00008B)ΔE 21.12, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CB9100
Analogous#009FCB, #2C00CB
Triadic#CB003A, #3ACB00
Split complementary#CB2C00, #9FCB00
Tetradic#CB00A0, #CB9100, #00CB2C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#98B5FF
Lighter +30%#6591FF
Lighter +20%#326DFF
Lighter +10%#0049FE
Darker −10%#002B98
Darker −20%#001D65
Darker −30%#000E32
Darker −40%#000000
More saturated +25%#003ACB
Less saturated −25%#1945B2

Channel breakdown

R0
G58
B203
Red0 (0%)
Green58 (22.7%)
Blue203 (79.6%)
Hue222.86°
Saturation (HSL)100%
Lightness39.8%
Dominant channelBlue
Hex per channelR 00 · G 3A · B CB

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Every value on this page was computed from “003acb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.