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Colour

#90A8CB

  • #90A8CB
  • Blue
  • Dark
  • Nearest: Light steelblue

#90A8CB is a blue with RGB values 144, 168, 203 and HSL 216°, 36%, 68%. It is a dark colour, so black text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#90A8CB#90A8CB
HEX#90A8CB
RGBrgb(144, 168, 203)
RGB (0–1)0.5647, 0.6588, 0.7961
RGB percentages56.5%, 65.9%, 79.6%
HSLhsl(215.6, 36.2%, 68%)
HSV / HSBhsv(215.6, 29.1%, 79.6%)
CMYK29.1%, 17.2%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,480,395
CSS custom property--colour: #90A8CB;

Brightness & contrast

Relative luminance0.38246WCAG 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 8.65:1
Contrast with white2.43:1WCAG normal text: Fail
Contrast with black8.65:1WCAG normal text: AAA
Greyscale equivalent#A5A5A5
Inverted#6F5734

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9CA9CDno red cones; affects about 1% of men; ΔE 3.8 from the original
Deuteranopia#96A4CAno green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#7FAFB3no blue cones; rare, and affects men and women equally; ΔE 19.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.43:1WCAG large text: Fail
Contrast with black, large text8.65:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 11.6Light slate grey · ΔE 15.6Light skyblue · ΔE 17.6Sky blue · ΔE 18.3Slate grey · ΔE 18.4Steel blue · ΔE 19.9
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 11.61, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CBB390
Analogous#90C6CB, #9590CB
Triadic#CB90A8, #A8CB90
Split complementary#CB9590, #C6CB90
Tetradic#CB90C6, #CBB390, #90CB95

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F8FAFC
Lighter +20%#D5DEEC
Lighter +10%#B3C3DB
Darker −10%#6D8DBB
Darker −20%#4E72A7
Darker −30%#3E5A84
Darker −40%#2E4361
More saturated +25%#7CA4DF
Less saturated −25%#A4ACB7

Channel breakdown

R144
G168
B203
Red144 (56.5%)
Green168 (65.9%)
Blue203 (79.6%)
Hue215.59°
Saturation (HSL)36.2%
Lightness68.04%
Dominant channelBlue
Hex per channelR 90 · G A8 · B CB

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Every value on this page was computed from “90a8cb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.