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Recognised as Colour

#048BD4

  • #048BD4
  • Blue
  • Dark
  • Nearest: Steel blue

#048BD4 is a blue with RGB values 4, 139, 212 and HSL 201°, 96%, 42%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#048BD4#048BD4
HEX#048BD4
RGBrgb(4, 139, 212)
RGB (0–1)0.0157, 0.5451, 0.8314
RGB percentages1.6%, 54.5%, 83.1%
HSLhsl(201.1, 96.3%, 42.4%)
HSV / HSBhsv(201.1, 98.1%, 83.1%)
CMYK98.1%, 34.4%, 0%, 16.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer297,940
CSS custom property--colour: #048BD4;

Brightness & contrast

Relative luminance0.23245WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.65:1
Contrast with white3.72:1WCAG normal text: Fail
Contrast with black5.65:1WCAG normal text: AA
Greyscale equivalent#747474
Inverted#FB742B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#688ED7no red cones; affects about 1% of men; ΔE 13.1 from the original
Deuteranopia#4C7DD3no green cones; the most common form, about 1% of men; ΔE 15.5 from the original
Tritanopia#009DA5no blue cones; rare, and affects men and women equally; ΔE 41.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.72:1WCAG large text: AA
Contrast with black, large text5.65:1WCAG large text: AAA

Named colours

Steel blue · ΔE 14.1Cornflower blue · ΔE 15.6Deep skyblue · ΔE 22Dodgerblue · ΔE 22.9Light skyblue · ΔE 30.7Light slate grey · ΔE 35
Nearest named CSS colourSteel blue (#4682B4)ΔE 14.09, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D44D04
Analogous#04D4B5, #0423D4
Triadic#D4048B, #8BD404
Split complementary#D40423, #D4B504
Tetradic#B504D4, #D44D04, #23D404

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A7DFFD
Lighter +30%#75CDFC
Lighter +20%#43BBFB
Lighter +10%#11A8FA
Darker −10%#036AA2
Darker −20%#024970
Darker −30%#01293E
Darker −40%#00080C
More saturated +25%#008CD8
Less saturated −25%#1F83B9

Channel breakdown

R4
G139
B212
Red4 (1.6%)
Green139 (54.5%)
Blue212 (83.1%)
Hue201.06°
Saturation (HSL)96.3%
Lightness42.35%
Dominant channelBlue
Hex per channelR 04 · G 8B · B D4

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Every value on this page was computed from “048bd4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.