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Colour

#303B54

  • #303B54
  • Blue
  • Dark
  • Nearest: Dark slate grey

#303B54 is a blue with RGB values 48, 59, 84 and HSL 222°, 27%, 26%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#303B54#303B54
HEX#303B54
RGBrgb(48, 59, 84)
RGB (0–1)0.1882, 0.2314, 0.3294
RGB percentages18.8%, 23.1%, 32.9%
HSLhsl(221.7, 27.3%, 25.9%)
HSV / HSBhsv(221.7, 42.9%, 32.9%)
CMYK42.9%, 29.8%, 0%, 67.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,160,916
CSS custom property--colour: #303B54;

Brightness & contrast

Relative luminance0.04396WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.17:1
Contrast with white11.17:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#CFC4AB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#323D55no red cones; affects about 1% of men; ΔE 1.1 from the original
Deuteranopia#2F3A53no green cones; the most common form, about 1% of men; ΔE 0.4 from the original
Tritanopia#244044no blue cones; rare, and affects men and women equally; ΔE 16.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.17:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 20.4Dim grey · ΔE 25.7Slate grey · ΔE 29Black · ΔE 30.1Light slate grey · ΔE 31.9Steel blue · ΔE 32.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 20.39, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#544930
Analogous#304D54, #373054
Triadic#54303B, #3B5430
Split complementary#543730, #4D5430
Tetradic#54304D, #544930, #305437

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#909FC0
Lighter +30%#7083AD
Lighter +20%#556995
Lighter +10%#435274
Darker −10%#1D2434
Darker −20%#0B0D13
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F3565
Less saturated −25%#404143

Channel breakdown

R48
G59
B84
Red48 (18.8%)
Green59 (23.1%)
Blue84 (32.9%)
Hue221.67°
Saturation (HSL)27.27%
Lightness25.88%
Dominant channelBlue
Hex per channelR 30 · G 3B · B 54

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Every value on this page was computed from “303b54” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.