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Recognised as Colour

#021040

  • #021040
  • Blue
  • Dark
  • Nearest: Midnight blue

#021040 is a blue with RGB values 2, 16, 64 and HSL 226°, 94%, 13%. It is a dark colour, so white text on it reaches 18.2:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#021040#021040
HEX#021040
RGBrgb(2, 16, 64)
RGB (0–1)0.0078, 0.0627, 0.251
RGB percentages0.8%, 6.3%, 25.1%
HSLhsl(226.5, 93.9%, 12.9%)
HSV / HSBhsv(226.5, 96.9%, 25.1%)
CMYK96.9%, 75%, 0%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer135,232
CSS custom property--colour: #021040;

Brightness & contrast

Relative luminance0.00754WCAG 2.x, 0 is black and 1 is white
Perceived brightness24.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.25:1
Contrast with white18.25:1WCAG normal text: AAA
Contrast with black1.15:1WCAG normal text: Fail
Greyscale equivalent#101010
Inverted#FDEFBF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001842no red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#00123Fno green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#001D26no blue cones; rare, and affects men and women equally; ΔE 32.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.25:1WCAG large text: AAA
Contrast with black, large text1.15:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 25.3Dark slateblue · ΔE 27.9Black · ΔE 36.4Rebecca purple · ΔE 40.4Indigo · ΔE 43.8Navy · ΔE 45.8
Nearest named CSS colourMidnight blue (#191970)ΔE 25.26, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#403202
Analogous#022F40, #130240
Triadic#400210, #104002
Split complementary#401302, #2F4002
Tetradic#40022F, #403202, #024013

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1649F8
Lighter +30%#0735D4
Lighter +20%#0529A3
Lighter +10%#041C71
Darker −10%#00040F
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000F42
Less saturated −25%#0A1538

Channel breakdown

R2
G16
B64
Red2 (0.8%)
Green16 (6.3%)
Blue64 (25.1%)
Hue226.45°
Saturation (HSL)93.94%
Lightness12.94%
Dominant channelBlue
Hex per channelR 02 · G 10 · B 40

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Every value on this page was computed from “hex 021040” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.