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Recognised as Colour

#0373DA

  • #0373DA
  • Blue
  • Dark
  • Nearest: Dodgerblue

#0373DA is a blue with RGB values 3, 115, 218 and HSL 209°, 97%, 43%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#0373DA#0373DA
HEX#0373DA
RGBrgb(3, 115, 218)
RGB (0–1)0.0118, 0.451, 0.8549
RGB percentages1.2%, 45.1%, 85.5%
HSLhsl(208.7, 97.3%, 43.3%)
HSV / HSBhsv(208.7, 98.6%, 85.5%)
CMYK98.6%, 47.2%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer226,266
CSS custom property--colour: #0373DA;

Brightness & contrast

Relative luminance0.17343WCAG 2.x, 0 is black and 1 is white
Perceived brightness114.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.7:1
Contrast with white4.7:1WCAG normal text: AA
Contrast with black4.47:1WCAG normal text: Fail
Greyscale equivalent#636363
Inverted#FC8C25

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#367DDEno red cones; affects about 1% of men; ΔE 5.9 from the original
Deuteranopia#006CD8no green cones; the most common form, about 1% of men; ΔE 4.8 from the original
Tritanopia#008C9Cno blue cones; rare, and affects men and women equally; ΔE 57.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.7:1WCAG large text: AAA
Contrast with black, large text4.47:1WCAG large text: AA

Named colours

Dodgerblue · ΔE 11.5Royal blue · ΔE 14.7Cornflower blue · ΔE 17.3Slate blue · ΔE 23.8Medium purple · ΔE 26.9Dark slateblue · ΔE 28.6
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 11.53, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DA6A03
Analogous#03DAD6, #0307DA
Triadic#DA0373, #73DA03
Split complementary#DA0307, #DAD503
Tetradic#D603DA, #DA6A03, #07DA03

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ABD6FE
Lighter +30%#79BEFD
Lighter +20%#47A5FC
Lighter +10%#148DFC
Darker −10%#0258A8
Darker −20%#023E75
Darker −30%#012343
Darker −40%#000911
More saturated +25%#0073DD
Less saturated −25%#1F72BE

Channel breakdown

R3
G115
B218
Red3 (1.2%)
Green115 (45.1%)
Blue218 (85.5%)
Hue208.74°
Saturation (HSL)97.29%
Lightness43.33%
Dominant channelBlue
Hex per channelR 03 · G 73 · B DA

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Every value on this page was computed from “0373da” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.