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Colour

#0048B2

  • #0048B2
  • Blue
  • Dark
  • Nearest: Royal blue

#0048B2 is a blue with RGB values 0, 72, 178 and HSL 216°, 100%, 35%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Royal blue.

Colour values

#0048B2#0048B2
HEX#0048B2
RGBrgb(0, 72, 178)
RGB (0–1)0, 0.2824, 0.698
RGB percentages0%, 28.2%, 69.8%
HSLhsl(215.7, 100%, 34.9%)
HSV / HSBhsv(215.7, 100%, 69.8%)
CMYK100%, 59.6%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer18,610
CSS custom property--colour: #0048B2;

Brightness & contrast

Relative luminance0.07849WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.17:1
Contrast with white8.17:1WCAG normal text: AAA
Contrast with black2.57:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#FFB74D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0057B6no red cones; affects about 1% of men; ΔE 10.8 from the original
Deuteranopia#0048B0no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#006376no blue cones; rare, and affects men and women equally; ΔE 60.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.17:1WCAG large text: AAA
Contrast with black, large text2.57:1WCAG large text: Fail

Named colours

Royal blue · ΔE 14.8Slate blue · ΔE 16.6Dark slateblue · ΔE 19.4Midnight blue · ΔE 22.4Rebecca purple · ΔE 23Medium slateblue · ΔE 25.1
Nearest named CSS colourRoyal blue (#4169E1)ΔE 14.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B26A00
Analogous#00A1B2, #1100B2
Triadic#B20048, #48B200
Split complementary#B21100, #A1B200
Tetradic#B200A1, #B26A00, #00B211

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7FB3FF
Lighter +30%#4C94FF
Lighter +20%#1976FF
Lighter +10%#005DE5
Darker −10%#00337F
Darker −20%#001F4C
Darker −30%#000A19
Darker −40%#000000
More saturated +25%#0048B2
Less saturated −25%#164C9C

Channel breakdown

R0
G72
B178
Red0 (0%)
Green72 (28.2%)
Blue178 (69.8%)
Hue215.73°
Saturation (HSL)100%
Lightness34.9%
Dominant channelBlue
Hex per channelR 00 · G 48 · B B2

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Every value on this page was computed from “0048b2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.