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Colour

#1F293F

  • #1F293F
  • Blue
  • Dark
  • Nearest: Black

#1F293F is a blue with RGB values 31, 41, 63 and HSL 221°, 34%, 18%. It is a dark colour, so white text on it reaches 14.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1F293F#1F293F
HEX#1F293F
RGBrgb(31, 41, 63)
RGB (0–1)0.1216, 0.1608, 0.2471
RGB percentages12.2%, 16.1%, 24.7%
HSLhsl(221.3, 34%, 18.4%)
HSV / HSBhsv(221.3, 50.8%, 24.7%)
CMYK50.8%, 34.9%, 0%, 75.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,042,175
CSS custom property--colour: #1F293F;

Brightness & contrast

Relative luminance0.02236WCAG 2.x, 0 is black and 1 is white
Perceived brightness41.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.51:1
Contrast with white14.51:1WCAG normal text: AAA
Contrast with black1.45:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#E0D6C0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#212B40no red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#1E283Fno green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#132E31no blue cones; rare, and affects men and women equally; ΔE 15.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.51:1WCAG large text: AAA
Contrast with black, large text1.45:1WCAG large text: Fail

Named colours

Black · ΔE 22.8Dark slate grey · ΔE 23.6Dim grey · ΔE 31.8Slate grey · ΔE 36.8Dark slateblue · ΔE 38.1Light slate grey · ΔE 39.8
Nearest named CSS colourBlack (#000000)ΔE 22.84, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3F351F
Analogous#1F393F, #251F3F
Triadic#3F1F29, #293F1F
Split complementary#3F251F, #393F1F
Tetradic#3F1F39, #3F351F, #1F3F25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7187B9
Lighter +30%#516CA6
Lighter +20%#415583
Lighter +10%#303F61
Darker −10%#0E131D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#13254B
Less saturated −25%#2B2D33

Channel breakdown

R31
G41
B63
Red31 (12.2%)
Green41 (16.1%)
Blue63 (24.7%)
Hue221.25°
Saturation (HSL)34.04%
Lightness18.43%
Dominant channelBlue
Hex per channelR 1F · G 29 · B 3F

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Every value on this page was computed from “1f293f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.