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Recognised as Colour

#03357D

  • #03357D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#03357D is a blue with RGB values 3, 53, 125 and HSL 215°, 95%, 25%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#03357D#03357D
HEX#03357D
RGBrgb(3, 53, 125)
RGB (0–1)0.0118, 0.2078, 0.4902
RGB percentages1.2%, 20.8%, 49%
HSLhsl(215.4, 95.3%, 25.1%)
HSV / HSBhsv(215.4, 97.6%, 49%)
CMYK97.6%, 57.6%, 0%, 51%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer210,301
CSS custom property--colour: #03357D;

Brightness & contrast

Relative luminance0.04046WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.61:1
Contrast with white11.61:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#FCCA82

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003E7Fno red cones; affects about 1% of men; ΔE 7.2 from the original
Deuteranopia#00347Cno green cones; the most common form, about 1% of men; ΔE 0.5 from the original
Tritanopia#004753no blue cones; rare, and affects men and women equally; ΔE 44.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.61:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.7Midnight blue · ΔE 18.4Rebecca purple · ΔE 28.6Slate blue · ΔE 32.2Royal blue · ΔE 33.2Indigo · ΔE 37
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.69, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7D4B03
Analogous#03727D, #0E037D
Triadic#7D0335, #357D03
Split complementary#7D0E03, #727D03
Tetradic#7D0372, #7D4B03, #037D0E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5197FB
Lighter +30%#1F79FA
Lighter +20%#055FE1
Lighter +10%#044AAF
Darker −10%#02204B
Darker −20%#010B19
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003480
Less saturated −25%#13386D

Channel breakdown

R3
G53
B125
Red3 (1.2%)
Green53 (20.8%)
Blue125 (49%)
Hue215.41°
Saturation (HSL)95.31%
Lightness25.1%
Dominant channelBlue
Hex per channelR 03 · G 35 · B 7D

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Every value on this page was computed from “03357d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.