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Recognised as Colour

#153FFA

  • #153FFA
  • Blue
  • Dark
  • Nearest: Medium blue

#153FFA is a blue with RGB values 21, 63, 250 and HSL 229°, 96%, 53%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Medium blue.

Colour values

#153FFA#153FFA
HEX#153FFA
RGBrgb(21, 63, 250)
RGB (0–1)0.0824, 0.2471, 0.9804
RGB percentages8.2%, 24.7%, 98%
HSLhsl(229, 95.8%, 53.1%)
HSV / HSBhsv(229, 91.6%, 98%)
CMYK91.6%, 74.8%, 0%, 2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,392,634
CSS custom property--colour: #153FFA;

Brightness & contrast

Relative luminance0.10617WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.72:1
Contrast with white6.72:1WCAG normal text: AA
Contrast with black3.12:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#EAC005

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0067FFno red cones; affects about 1% of men; ΔE 27.5 from the original
Deuteranopia#0050F7no green cones; the most common form, about 1% of men; ΔE 13.5 from the original
Tritanopia#00789Ano blue cones; rare, and affects men and women equally; ΔE 99.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.72:1WCAG large text: AAA
Contrast with black, large text3.12:1WCAG large text: AA

Named colours

Medium blue · ΔE 17.3Blue violet · ΔE 23.2Blue · ΔE 26.7Dark violet · ΔE 30.3Dark orchid · ΔE 35.1Medium slateblue · ΔE 35.5
Nearest named CSS colourMedium blue (#0000CD)ΔE 17.26, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FAD015
Analogous#15B2FA, #5D15FA
Triadic#FA153F, #3FFA15
Split complementary#FA5D15, #B2FA15
Tetradic#FA15B2, #FAD015, #15FA5D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DDE3FE
Lighter +30%#ABBAFD
Lighter +20%#7991FC
Lighter +10%#4768FB
Darker −10%#052BD7
Darker −20%#0421A5
Darker −30%#021774
Darker −40%#010D42
More saturated +25%#103CFF
Less saturated −25%#3352DC

Channel breakdown

R21
G63
B250
Red21 (8.2%)
Green63 (24.7%)
Blue250 (98%)
Hue229°
Saturation (HSL)95.82%
Lightness53.14%
Dominant channelBlue
Hex per channelR 15 · G 3F · B FA

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