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Recognised as Colour

#048BCB

  • #048BCB
  • Cyan
  • Dark
  • Nearest: Steel blue

#048BCB is a cyan with RGB values 4, 139, 203 and HSL 199°, 96%, 41%. 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

#048BCB#048BCB
HEX#048BCB
RGBrgb(4, 139, 203)
RGB (0–1)0.0157, 0.5451, 0.7961
RGB percentages1.6%, 54.5%, 79.6%
HSLhsl(199.3, 96.1%, 40.6%)
HSV / HSBhsv(199.3, 98%, 79.6%)
CMYK98%, 31.5%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer297,931
CSS custom property--colour: #048BCB;

Brightness & contrast

Relative luminance0.22803WCAG 2.x, 0 is black and 1 is white
Perceived brightness126.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.56:1
Contrast with white3.78:1WCAG normal text: Fail
Contrast with black5.56:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#FB7434

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6C8CCEno red cones; affects about 1% of men; ΔE 15.5 from the original
Deuteranopia#537CCAno green cones; the most common form, about 1% of men; ΔE 17.7 from the original
Tritanopia#009BA2no blue cones; rare, and affects men and women equally; ΔE 36.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.78:1WCAG large text: AA
Contrast with black, large text5.56:1WCAG large text: AAA

Named colours

Steel blue · ΔE 10.4Cornflower blue · ΔE 20Deep skyblue · ΔE 20.3Light skyblue · ΔE 28.3Dodgerblue · ΔE 28.4Light slate grey · ΔE 31
Nearest named CSS colourSteel blue (#4682B4)ΔE 10.42, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CB4404
Analogous#04CBA8, #0427CB
Triadic#CB048B, #8BCB04
Split complementary#CB0428, #CBA704
Tetradic#A704CB, #CB4404, #27CB04

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9EDEFD
Lighter +30%#6CCEFC
Lighter +20%#3ABDFB
Lighter +10%#08ACFA
Darker −10%#036999
Darker −20%#024767
Darker −30%#012435
Darker −40%#000203
More saturated +25%#008CCF
Less saturated −25%#1E82B1

Channel breakdown

R4
G139
B203
Red4 (1.6%)
Green139 (54.5%)
Blue203 (79.6%)
Hue199.3°
Saturation (HSL)96.14%
Lightness40.59%
Dominant channelBlue
Hex per channelR 04 · G 8B · B CB

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