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Recognised as Colour

#90A1DB

  • #90A1DB
  • Blue
  • Dark
  • Nearest: Cornflower blue

#90A1DB is a blue with RGB values 144, 161, 219 and HSL 226°, 51%, 71%. It is a dark colour, so black text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#90A1DB#90A1DB
HEX#90A1DB
RGBrgb(144, 161, 219)
RGB (0–1)0.5647, 0.6314, 0.8588
RGB percentages56.5%, 63.1%, 85.9%
HSLhsl(226.4, 51%, 71.2%)
HSV / HSBhsv(226.4, 34.2%, 85.9%)
CMYK34.2%, 26.5%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,478,619
CSS custom property--colour: #90A1DB;

Brightness & contrast

Relative luminance0.36534WCAG 2.x, 0 is black and 1 is white
Perceived brightness164 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.31:1
Contrast with white2.53:1WCAG normal text: Fail
Contrast with black8.31:1WCAG normal text: AAA
Greyscale equivalent#A2A2A2
Inverted#6F5E24

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8EA6DEno red cones; affects about 1% of men; ΔE 2.9 from the original
Deuteranopia#88A0DAno green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#7AACB5no blue cones; rare, and affects men and women equally; ΔE 30.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.53:1WCAG large text: Fail
Contrast with black, large text8.31:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 18.7Steel blue · ΔE 18.7Light steelblue · ΔE 21.8Light skyblue · ΔE 22.7Light slate grey · ΔE 25.1Thistle · ΔE 26.3
Nearest named CSS colourCornflower blue (#6495ED)ΔE 18.7, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DBCA90
Analogous#90C7DB, #A490DB
Triadic#DB90A1, #A1DB90
Split complementary#DBA490, #C7DB90
Tetradic#DB90C7, #DBCA90, #90DBA4

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#DDE2F4
Lighter +10%#B7C2E7
Darker −10%#6980CF
Darker −20%#4360C2
Darker −30%#334C9F
Darker −40%#273978
More saturated +25%#7E97ED
Less saturated −25%#A2ABC9

Channel breakdown

R144
G161
B219
Red144 (56.5%)
Green161 (63.1%)
Blue219 (85.9%)
Hue226.4°
Saturation (HSL)51.02%
Lightness71.18%
Dominant channelBlue
Hex per channelR 90 · G A1 · B DB

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Every value on this page was computed from “90a1db” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.