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Colour

#305B76

  • #305B76
  • Blue
  • Dark
  • Nearest: Dark slate grey

#305B76 is a blue with RGB values 48, 91, 118 and HSL 203°, 42%, 33%. It is a dark colour, so white text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#305B76#305B76
HEX#305B76
RGBrgb(48, 91, 118)
RGB (0–1)0.1882, 0.3569, 0.4627
RGB percentages18.8%, 35.7%, 46.3%
HSLhsl(203.1, 42.2%, 32.5%)
HSV / HSBhsv(203.1, 59.3%, 46.3%)
CMYK59.3%, 22.9%, 0%, 53.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,169,142
CSS custom property--colour: #305B76;

Brightness & contrast

Relative luminance0.09419WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.28:1
Contrast with white7.28:1WCAG normal text: AAA
Contrast with black2.88:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#CFA489

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4F5B77no red cones; affects about 1% of men; ΔE 9.5 from the original
Deuteranopia#455376no green cones; the most common form, about 1% of men; ΔE 10.8 from the original
Tritanopia#006264no blue cones; rare, and affects men and women equally; ΔE 20.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.28:1WCAG large text: AAA
Contrast with black, large text2.88:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 17.9Slate grey · ΔE 19Steel blue · ΔE 20.1Light slate grey · ΔE 21.4Dim grey · ΔE 22.2Gray · ΔE 26.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 17.86, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#764B30
Analogous#30766E, #303876
Triadic#76305B, #5B7630
Split complementary#763038, #766E30
Tetradic#6E3076, #764B30, #387630

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9BC0D7
Lighter +30%#77A9C8
Lighter +20%#5392B9
Lighter +10%#3F779A
Darker −10%#213F52
Darker −20%#13232D
Darker −30%#040709
Darker −40%#000000
More saturated +25%#1B608B
Less saturated −25%#455661

Channel breakdown

R48
G91
B118
Red48 (18.8%)
Green91 (35.7%)
Blue118 (46.3%)
Hue203.14°
Saturation (HSL)42.17%
Lightness32.55%
Dominant channelBlue
Hex per channelR 30 · G 5B · B 76

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Every value on this page was computed from “305b76” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.