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Recognised as Colour

#263F50

  • #263F50
  • Blue
  • Dark
  • Nearest: Dark slate grey

#263F50 is a blue with RGB values 38, 63, 80 and HSL 204°, 36%, 23%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#263F50#263F50
HEX#263F50
RGBrgb(38, 63, 80)
RGB (0–1)0.149, 0.2471, 0.3137
RGB percentages14.9%, 24.7%, 31.4%
HSLhsl(204.3, 35.6%, 23.1%)
HSV / HSBhsv(204.3, 52.5%, 31.4%)
CMYK52.5%, 21.2%, 0%, 68.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,506,576
CSS custom property--colour: #263F50;

Brightness & contrast

Relative luminance0.04546WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11:1
Contrast with white11:1WCAG normal text: AAA
Contrast with black1.91:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#D9C0AF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#373F51no red cones; affects about 1% of men; ΔE 6 from the original
Deuteranopia#323A50no green cones; the most common form, about 1% of men; ΔE 7.2 from the original
Tritanopia#124345no blue cones; rare, and affects men and women equally; ΔE 13.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11:1WCAG large text: AAA
Contrast with black, large text1.91:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.5Dim grey · ΔE 23.6Slate grey · ΔE 27.6Black · ΔE 29Light slate grey · ΔE 30.7Gray · ΔE 31.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.5, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#503726
Analogous#26504C, #262A50
Triadic#50263F, #3F5026
Split complementary#50262A, #504C26
Tetradic#4C2650, #503726, #2A5026

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#80A7C2
Lighter +30%#5D90B2
Lighter +20%#477595
Lighter +10%#365A73
Darker −10%#16242D
Darker −20%#05090B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#17425F
Less saturated −25%#353C41

Channel breakdown

R38
G63
B80
Red38 (14.9%)
Green63 (24.7%)
Blue80 (31.4%)
Hue204.29°
Saturation (HSL)35.59%
Lightness23.14%
Dominant channelBlue
Hex per channelR 26 · G 3F · B 50

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Every value on this page was computed from “263f50” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.