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Recognised as Colour

#040A88

  • #040A88
  • Blue
  • Dark
  • Nearest: Navy

#040A88 is a blue with RGB values 4, 10, 136 and HSL 237°, 94%, 27%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Navy.

Colour values

#040A88#040A88
HEX#040A88
RGBrgb(4, 10, 136)
RGB (0–1)0.0157, 0.0392, 0.5333
RGB percentages1.6%, 3.9%, 53.3%
HSLhsl(237.3, 94.3%, 27.5%)
HSV / HSBhsv(237.3, 97.1%, 53.3%)
CMYK97.1%, 92.6%, 0%, 46.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer264,840
CSS custom property--colour: #040A88;

Brightness & contrast

Relative luminance0.0202WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.96:1
Contrast with white14.96:1WCAG normal text: AAA
Contrast with black1.4:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#FBF577

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002E8Bno red cones; affects about 1% of men; ΔE 23.3 from the original
Deuteranopia#001F86no green cones; the most common form, about 1% of men; ΔE 13.5 from the original
Tritanopia#00384Eno blue cones; rare, and affects men and women equally; ΔE 71.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.96:1WCAG large text: AAA
Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Navy · ΔE 3.1Dark blue · ΔE 5.5Indigo · ΔE 14.2Midnight blue · ΔE 21.4Rebecca purple · ΔE 25.3Slate blue · ΔE 32.3
Nearest named CSS colourNavy (#000080)ΔE 3.07, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#888204
Analogous#044C88, #400488
Triadic#88040A, #0A8804
Split complementary#884004, #4C8804
Tetradic#88044C, #888204, #048840

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5E65FA
Lighter +30%#2C36F9
Lighter +20%#0711EB
Lighter +10%#050EBA
Darker −10%#030656
Darker −20%#010325
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00068C
Less saturated −25%#161A77

Channel breakdown

R4
G10
B136
Red4 (1.6%)
Green10 (3.9%)
Blue136 (53.3%)
Hue237.27°
Saturation (HSL)94.29%
Lightness27.45%
Dominant channelBlue
Hex per channelR 04 · G 0A · B 88

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Every value on this page was computed from “040a88” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.