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Recognised as Colour

#153D95

  • #153D95
  • Blue
  • Dark
  • Nearest: Dark slateblue

#153D95 is a blue with RGB values 21, 61, 149 and HSL 221°, 75%, 33%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#153D95#153D95
HEX#153D95
RGBrgb(21, 61, 149)
RGB (0–1)0.0824, 0.2392, 0.5843
RGB percentages8.2%, 23.9%, 58.4%
HSLhsl(221.3, 75.3%, 33.3%)
HSV / HSBhsv(221.3, 85.9%, 58.4%)
CMYK85.9%, 59.1%, 0%, 41.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,392,021
CSS custom property--colour: #153D95;

Brightness & contrast

Relative luminance0.05667WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.84:1
Contrast with white9.84:1WCAG normal text: AAA
Contrast with black2.13:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#EAC26A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004998no red cones; affects about 1% of men; ΔE 9.6 from the original
Deuteranopia#003E93no green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#005363no blue cones; rare, and affects men and women equally; ΔE 52.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.84:1WCAG large text: AAA
Contrast with black, large text2.13:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 11.2Midnight blue · ΔE 16.5Rebecca purple · ΔE 22.4Slate blue · ΔE 22.9Royal blue · ΔE 23.9Medium purple · ΔE 30.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.21, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#956D15
Analogous#157D95, #2D1595
Triadic#95153D, #3D9515
Split complementary#952D15, #7D9515
Tetradic#95157D, #956D15, #15952D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#88A8EE
Lighter +30%#5B87E8
Lighter +20%#2E66E2
Lighter +10%#1B4FC2
Darker −10%#0F2B68
Darker −20%#08183C
Darker −30%#02060F
Darker −40%#000000
More saturated +25%#0035AA
Less saturated −25%#2A4580

Channel breakdown

R21
G61
B149
Red21 (8.2%)
Green61 (23.9%)
Blue149 (58.4%)
Hue221.25°
Saturation (HSL)75.29%
Lightness33.33%
Dominant channelBlue
Hex per channelR 15 · G 3D · B 95

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Every value on this page was computed from “153d95” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.