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Recognised as Colour

#30445B

  • #30445B
  • Blue
  • Dark
  • Nearest: Dark slate grey

#30445B is a blue with RGB values 48, 68, 91 and HSL 212°, 31%, 27%. It is a dark colour, so white text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#30445B#30445B
HEX#30445B
RGBrgb(48, 68, 91)
RGB (0–1)0.1882, 0.2667, 0.3569
RGB percentages18.8%, 26.7%, 35.7%
HSLhsl(212.1, 30.9%, 27.3%)
HSV / HSBhsv(212.1, 47.3%, 35.7%)
CMYK47.3%, 25.3%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,163,227
CSS custom property--colour: #30445B;

Brightness & contrast

Relative luminance0.05518WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.98:1
Contrast with white9.98:1WCAG normal text: AAA
Contrast with black2.1:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#CFBBA4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3B455Cno red cones; affects about 1% of men; ΔE 3.5 from the original
Deuteranopia#36415Bno green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#1F494Cno blue cones; rare, and affects men and women equally; ΔE 16.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.98:1WCAG large text: AAA
Contrast with black, large text2.1:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16.8Dim grey · ΔE 22.9Slate grey · ΔE 25.3Light slate grey · ΔE 28.2Steel blue · ΔE 29.3Gray · ΔE 30.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.77, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B4730
Analogous#305A5B, #32305B
Triadic#5B3044, #445B30
Split complementary#5B3130, #5A5B30
Tetradic#5B305A, #5B4730, #305B31

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#92AAC5
Lighter +30%#7090B4
Lighter +20%#53769E
Lighter +10%#425D7C
Darker −10%#1E2B3A
Darker −20%#0D1218
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F436C
Less saturated −25%#41454A

Channel breakdown

R48
G68
B91
Red48 (18.8%)
Green68 (26.7%)
Blue91 (35.7%)
Hue212.09°
Saturation (HSL)30.94%
Lightness27.25%
Dominant channelBlue
Hex per channelR 30 · G 44 · B 5B

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Every value on this page was computed from “30445b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.