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Colour

#90A4DB

  • #90A4DB
  • Blue
  • Dark
  • Nearest: Steel blue

#90A4DB is a blue with RGB values 144, 164, 219 and HSL 224°, 51%, 71%. It is a dark colour, so black text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#90A4DB#90A4DB
HEX#90A4DB
RGBrgb(144, 164, 219)
RGB (0–1)0.5647, 0.6431, 0.8588
RGB percentages56.5%, 64.3%, 85.9%
HSLhsl(224, 51%, 71.2%)
HSV / HSBhsv(224, 34.2%, 85.9%)
CMYK34.2%, 25.1%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,479,387
CSS custom property--colour: #90A4DB;

Brightness & contrast

Relative luminance0.37595WCAG 2.x, 0 is black and 1 is white
Perceived brightness165.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.52:1
Contrast with white2.47:1WCAG normal text: Fail
Contrast with black8.52:1WCAG normal text: AAA
Greyscale equivalent#A4A4A4
Inverted#6F5B24

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#92A8DDno red cones; affects about 1% of men; ΔE 1.9 from the original
Deuteranopia#8CA2DAno green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#7AAFB7no blue cones; rare, and affects men and women equally; ΔE 29.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.47:1WCAG large text: Fail
Contrast with black, large text8.52:1WCAG large text: AAA

Named colours

Steel blue · ΔE 18.4Light steelblue · ΔE 19.8Cornflower blue · ΔE 20.3Light skyblue · ΔE 20.8Light slate grey · ΔE 23.9Thistle · ΔE 25.3
Nearest named CSS colourSteel blue (#4682B4)ΔE 18.43, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DBC790
Analogous#90CADB, #A290DB
Triadic#DB90A4, #A4DB90
Split complementary#DBA290, #CADB90
Tetradic#DB90CA, #DBC790, #90DBA2

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#DDE3F4
Lighter +10%#B7C4E7
Darker −10%#6984CF
Darker −20%#4365C2
Darker −30%#33509F
Darker −40%#273D78
More saturated +25%#7E9BED
Less saturated −25%#A2ADC9

Channel breakdown

R144
G164
B219
Red144 (56.5%)
Green164 (64.3%)
Blue219 (85.9%)
Hue224°
Saturation (HSL)51.02%
Lightness71.18%
Dominant channelBlue
Hex per channelR 90 · G A4 · B DB

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Every value on this page was computed from “90a4db” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.