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Recognised as Colour

#040229

  • #040229
  • Blue
  • Dark
  • Nearest: Black

#040229 is a blue with RGB values 4, 2, 41 and HSL 243°, 91%, 8%. It is a dark colour, so white text on it reaches 20.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#040229#040229
HEX#040229
RGBrgb(4, 2, 41)
RGB (0–1)0.0157, 0.0078, 0.1608
RGB percentages1.6%, 0.8%, 16.1%
HSLhsl(243.1, 90.7%, 8.4%)
HSV / HSBhsv(243.1, 95.1%, 16.1%)
CMYK90.2%, 95.1%, 0%, 83.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer262,697
CSS custom property--colour: #040229;

Brightness & contrast

Relative luminance0.00229WCAG 2.x, 0 is black and 1 is white
Perceived brightness14.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 20.08:1
Contrast with white20.08:1WCAG normal text: AAA
Contrast with black1.05:1WCAG normal text: Fail
Greyscale equivalent#050505
Inverted#FBFDD6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00092Ano red cones; affects about 1% of men; ΔE 3.8 from the original
Deuteranopia#000628no green cones; the most common form, about 1% of men; ΔE 3.5 from the original
Tritanopia#000C14no blue cones; rare, and affects men and women equally; ΔE 21.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text20.08:1WCAG large text: AAA
Contrast with black, large text1.05:1WCAG large text: Fail

Named colours

Black · ΔE 25Midnight blue · ΔE 37Dark slateblue · ΔE 38.1Dark slate grey · ΔE 41.2Dim grey · ΔE 49.1Rebecca purple · ΔE 51.1
Nearest named CSS colourBlack (#000000)ΔE 24.98, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#272902
Analogous#021329, #180229
Triadic#290402, #022904
Split complementary#291802, #132902
Tetradic#290213, #272902, #022918

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#170BEC
Lighter +30%#1209BB
Lighter +20%#0D078A
Lighter +10%#09045A
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#02002B
Less saturated −25%#090724

Channel breakdown

R4
G2
B41
Red4 (1.6%)
Green2 (0.8%)
Blue41 (16.1%)
Hue243.08°
Saturation (HSL)90.7%
Lightness8.43%
Dominant channelBlue
Hex per channelR 04 · G 02 · B 29

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Every value on this page was computed from “hex 040229” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.