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Colour

#37464F

  • #37464F
  • Blue
  • Dark
  • Nearest: Dark slate grey

#37464F is a blue with RGB values 55, 70, 79 and HSL 203°, 18%, 26%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#37464F#37464F
HEX#37464F
RGBrgb(55, 70, 79)
RGB (0–1)0.2157, 0.2745, 0.3098
RGB percentages21.6%, 27.5%, 31%
HSLhsl(202.5, 17.9%, 26.3%)
HSV / HSBhsv(202.5, 30.4%, 31%)
CMYK30.4%, 11.4%, 0%, 69%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,622,479
CSS custom property--colour: #37464F;

Brightness & contrast

Relative luminance0.05757WCAG 2.x, 0 is black and 1 is white
Perceived brightness67 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.76:1
Contrast with white9.76:1WCAG normal text: AAA
Contrast with black2.15:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#C8B9B0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#42454Fno red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#3E434Fno green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#304849no blue cones; rare, and affects men and women equally; ΔE 6.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.76:1WCAG large text: AAA
Contrast with black, large text2.15:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.3Dim grey · ΔE 17.6Slate grey · ΔE 24.3Gray · ΔE 26.1Light slate grey · ΔE 27.4Black · ΔE 29.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.29, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4F4037
Analogous#374F4C, #373A4F
Triadic#4F3746, #464F37
Split complementary#4F373A, #4F4C37
Tetradic#4C374F, #4F4037, #3A4F37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9AADB8
Lighter +30%#7C94A3
Lighter +20%#617B8B
Lighter +10%#4C616D
Darker −10%#222B31
Darker −20%#0D1113
Darker −30%#000000
Darker −40%#000000
More saturated +25%#264A60
Less saturated −25%#434343

Channel breakdown

R55
G70
B79
Red55 (21.6%)
Green70 (27.5%)
Blue79 (31%)
Hue202.5°
Saturation (HSL)17.91%
Lightness26.27%
Dominant channelBlue
Hex per channelR 37 · G 46 · B 4F

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Every value on this page was computed from “37464f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.