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Recognised as Colour

#30408E

  • #30408E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#30408E is a blue with RGB values 48, 64, 142 and HSL 230°, 49%, 37%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#30408E#30408E
HEX#30408E
RGBrgb(48, 64, 142)
RGB (0–1)0.1882, 0.251, 0.5569
RGB percentages18.8%, 25.1%, 55.7%
HSLhsl(229.8, 49.5%, 37.3%)
HSV / HSBhsv(229.8, 66.2%, 55.7%)
CMYK66.2%, 54.9%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,162,254
CSS custom property--colour: #30408E;

Brightness & contrast

Relative luminance0.06248WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.33:1
Contrast with white9.33:1WCAG normal text: AAA
Contrast with black2.25:1WCAG normal text: Fail
Greyscale equivalent#424242
Inverted#CFBF71

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0A4B91no red cones; affects about 1% of men; ΔE 11 from the original
Deuteranopia#00438Cno green cones; the most common form, about 1% of men; ΔE 7.9 from the original
Tritanopia#005260no blue cones; rare, and affects men and women equally; ΔE 47.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.33:1WCAG large text: AAA
Contrast with black, large text2.25:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 6.8Midnight blue · ΔE 18.8Rebecca purple · ΔE 23Slate blue · ΔE 25.4Royal blue · ΔE 27.4Medium purple · ΔE 30.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 6.81, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8E7E30
Analogous#306F8E, #4F308E
Triadic#8E3040, #408E30
Split complementary#8E4F30, #6F8E30
Tetradic#8E306F, #8E7E30, #308E4F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A8B2E2
Lighter +30%#8290D5
Lighter +20%#5C6EC8
Lighter +10%#3D51B4
Darker −10%#232F68
Darker −20%#161E42
Darker −30%#090C1C
Darker −40%#000000
More saturated +25%#1830A6
Less saturated −25%#485076

Channel breakdown

R48
G64
B142
Red48 (18.8%)
Green64 (25.1%)
Blue142 (55.7%)
Hue229.79°
Saturation (HSL)49.47%
Lightness37.25%
Dominant channelBlue
Hex per channelR 30 · G 40 · B 8E

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Every value on this page was computed from “30408e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.