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Colour

#333D53

  • #333D53
  • Blue
  • Dark
  • Nearest: Dark slate grey

#333D53 is a blue with RGB values 51, 61, 83 and HSL 221°, 24%, 26%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#333D53#333D53
HEX#333D53
RGBrgb(51, 61, 83)
RGB (0–1)0.2, 0.2392, 0.3255
RGB percentages20%, 23.9%, 32.5%
HSLhsl(221.3, 23.9%, 26.3%)
HSV / HSBhsv(221.3, 38.6%, 32.5%)
CMYK38.6%, 26.5%, 0%, 67.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,358,035
CSS custom property--colour: #333D53;

Brightness & contrast

Relative luminance0.04666WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.86:1
Contrast with white10.86:1WCAG normal text: AAA
Contrast with black1.93:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#CCC2AC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#363F54no red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#333C52no green cones; the most common form, about 1% of men; ΔE 0.5 from the original
Tritanopia#294145no blue cones; rare, and affects men and women equally; ΔE 13.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.86:1WCAG large text: AAA
Contrast with black, large text1.93:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.5Dim grey · ΔE 23.8Slate grey · ΔE 27.7Black · ΔE 29.7Light slate grey · ΔE 30.7Gray · ΔE 31.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.46, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#534933
Analogous#334D53, #393353
Triadic#53333D, #3D5333
Split complementary#533933, #4D5333
Tetradic#53334D, #534933, #335339

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#94A1BE
Lighter +30%#7586AA
Lighter +20%#5A6B92
Lighter +10%#465473
Darker −10%#202633
Darker −20%#0C0F14
Darker −30%#000000
Darker −40%#000000
More saturated +25%#223764
Less saturated −25%#434343

Channel breakdown

R51
G61
B83
Red51 (20%)
Green61 (23.9%)
Blue83 (32.5%)
Hue221.25°
Saturation (HSL)23.88%
Lightness26.27%
Dominant channelBlue
Hex per channelR 33 · G 3D · B 53

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Every value on this page was computed from “333d53” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.