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Recognised as Colour

#04405E

  • #04405E
  • Blue
  • Dark
  • Nearest: Dark slate grey

#04405E is a blue with RGB values 4, 64, 94 and HSL 200°, 92%, 19%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#04405E#04405E
HEX#04405E
RGBrgb(4, 64, 94)
RGB (0–1)0.0157, 0.251, 0.3686
RGB percentages1.6%, 25.1%, 36.9%
HSLhsl(200, 91.8%, 19.2%)
HSV / HSBhsv(200, 95.7%, 36.9%)
CMYK95.7%, 31.9%, 0%, 63.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer278,622
CSS custom property--colour: #04405E;

Brightness & contrast

Relative luminance0.04501WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.05:1
Contrast with white11.05:1WCAG normal text: AAA
Contrast with black1.9:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#FBBFA1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#31405Fno red cones; affects about 1% of men; ΔE 9.3 from the original
Deuteranopia#26385Dno green cones; the most common form, about 1% of men; ΔE 10.8 from the original
Tritanopia#00484Bno blue cones; rare, and affects men and women equally; ΔE 20 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.05:1WCAG large text: AAA
Contrast with black, large text1.9:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 20.9Steel blue · ΔE 28.8Dim grey · ΔE 30.2Slate grey · ΔE 30.3Light slate grey · ΔE 32.9Black · ΔE 34.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 20.91, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5E2204
Analogous#045E4F, #04135E
Triadic#5E0440, #405E04
Split complementary#5E0413, #5E4F04
Tetradic#4F045E, #5E2204, #135E04

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#37B7F7
Lighter +30%#0AA4F1
Lighter +20%#0883C0
Lighter +10%#06618F
Darker −10%#021F2D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004162
Less saturated −25%#103C52

Channel breakdown

R4
G64
B94
Red4 (1.6%)
Green64 (25.1%)
Blue94 (36.9%)
Hue200°
Saturation (HSL)91.84%
Lightness19.22%
Dominant channelBlue
Hex per channelR 04 · G 40 · B 5E

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Every value on this page was computed from “04405e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.