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Recognised as Colour

#0153CA

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

#0153CA is a blue with RGB values 1, 83, 202 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

#0153CA#0153CA
HEX#0153CA
RGBrgb(1, 83, 202)
RGB (0–1)0.0039, 0.3255, 0.7922
RGB percentages0.4%, 32.5%, 79.2%
HSLhsl(215.5, 99%, 39.8%)
HSV / HSBhsv(215.5, 99.5%, 79.2%)
CMYK99.5%, 58.9%, 0%, 20.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer86,986
CSS custom property--colour: #0153CA;

Brightness & contrast

Relative luminance0.10457WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.79:1
Contrast with white6.79:1WCAG normal text: AA
Contrast with black3.09:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#FEAC35

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064CEno red cones; affects about 1% of men; ΔE 12.3 from the original
Deuteranopia#0053C8no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#007286no 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 text6.79:1WCAG large text: AAA
Contrast with black, large text3.09:1WCAG large text: AA

Named colours

Royal blue · ΔE 9.4Slate blue · ΔE 14.6Medium slateblue · ΔE 19.6Medium purple · ΔE 25.5Rebecca purple · ΔE 26.2Dark slateblue · ΔE 26.2
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.4, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CA7801
Analogous#01B8CA, #1301CA
Triadic#CA0153, #53CA01
Split complementary#CA1301, #B8CA01
Tetradic#CA01B8, #CA7801, #01CA13

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#99C2FE
Lighter +30%#66A4FE
Lighter +20%#3386FE
Lighter +10%#0168FD
Darker −10%#013E97
Darker −20%#002965
Darker −30%#001432
Darker −40%#000000
More saturated +25%#0053CB
Less saturated −25%#1A58B1

Channel breakdown

R1
G83
B202
Red1 (0.4%)
Green83 (32.5%)
Blue202 (79.2%)
Hue215.52°
Saturation (HSL)99.01%
Lightness39.8%
Dominant channelBlue
Hex per channelR 01 · G 53 · B CA

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