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Recognised as Colour

#308BAD

  • #308BAD
  • Cyan
  • Dark
  • Nearest: Steel blue

#308BAD is a cyan with RGB values 48, 139, 173 and HSL 196°, 57%, 43%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#308BAD#308BAD
HEX#308BAD
RGBrgb(48, 139, 173)
RGB (0–1)0.1882, 0.5451, 0.6784
RGB percentages18.8%, 54.5%, 67.8%
HSLhsl(196.3, 56.6%, 43.3%)
HSV / HSBhsv(196.3, 72.3%, 67.8%)
CMYK72.3%, 19.7%, 0%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,181,485
CSS custom property--colour: #308BAD;

Brightness & contrast

Relative luminance0.22111WCAG 2.x, 0 is black and 1 is white
Perceived brightness124.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.42:1
Contrast with white3.87:1WCAG normal text: Fail
Contrast with black5.42:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#CF7452

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7988AFno red cones; affects about 1% of men; ΔE 19.6 from the original
Deuteranopia#687CADno green cones; the most common form, about 1% of men; ΔE 20.9 from the original
Tritanopia#009596no blue cones; rare, and affects men and women equally; ΔE 22.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.87:1WCAG large text: AA
Contrast with black, large text5.42:1WCAG large text: AAA

Named colours

Steel blue · ΔE 13.1Light slate grey · ΔE 19.6Cadetblue · ΔE 20Slate grey · ΔE 20Teal · ΔE 22.7Dark cyan · ΔE 22.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 13.07, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AD5230
Analogous#30AD91, #304CAD
Triadic#AD308B, #8BAD30
Split complementary#AD304C, #AD9130
Tetradic#9130AD, #AD5230, #4CAD30

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCDFED
Lighter +30%#95CDE1
Lighter +20%#6DBAD6
Lighter +10%#45A7CB
Darker −10%#256B85
Darker −20%#1A4B5D
Darker −30%#0F2B35
Darker −40%#040B0D
More saturated +25%#1498C9
Less saturated −25%#4C7E91

Channel breakdown

R48
G139
B173
Red48 (18.8%)
Green139 (54.5%)
Blue173 (67.8%)
Hue196.32°
Saturation (HSL)56.56%
Lightness43.33%
Dominant channelBlue
Hex per channelR 30 · G 8B · B AD

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Every value on this page was computed from “308bad” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.