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Recognised as Colour

#0153CB

  • #0153CB
  • Blue
  • Dark
  • Nearest: Royal blue

#0153CB is a blue with RGB values 1, 83, 203 and HSL 216°, 99%, 40%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0153CB#0153CB
HEX#0153CB
RGBrgb(1, 83, 203)
RGB (0–1)0.0039, 0.3255, 0.7961
RGB percentages0.4%, 32.5%, 79.6%
HSLhsl(215.6, 99%, 40%)
HSV / HSBhsv(215.6, 99.5%, 79.6%)
CMYK99.5%, 59.1%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer86,987
CSS custom property--colour: #0153CB;

Brightness & contrast

Relative luminance0.10505WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.77:1
Contrast with white6.77:1WCAG normal text: AA
Contrast with black3.1:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#FEAC34

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064CFno red cones; affects about 1% of men; ΔE 12.3 from the original
Deuteranopia#0053C9no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#007287no blue cones; rare, and affects men and women equally; ΔE 67.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.77:1WCAG large text: AAA
Contrast with black, large text3.1:1WCAG large text: AA

Named colours

Royal blue · ΔE 9.5Slate blue · ΔE 14.6Medium slateblue · ΔE 19.3Medium purple · ΔE 25.6Rebecca purple · ΔE 26.3Dark slateblue · ΔE 26.7
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.45, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CB7901
Analogous#01B8CB, #1401CB
Triadic#CB0153, #53CB01
Split complementary#CB1401, #B8CB01
Tetradic#CB01B8, #CB7901, #01CB14

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9AC2FF
Lighter +30%#67A4FE
Lighter +20%#3486FE
Lighter +10%#0168FE
Darker −10%#013E98
Darker −20%#002966
Darker −30%#001533
Darker −40%#000000
More saturated +25%#0053CC
Less saturated −25%#1A58B2

Channel breakdown

R1
G83
B203
Red1 (0.4%)
Green83 (32.5%)
Blue203 (79.6%)
Hue215.64°
Saturation (HSL)99.02%
Lightness40%
Dominant channelBlue
Hex per channelR 01 · G 53 · B CB

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Every value on this page was computed from “0153cb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.