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Recognised as Colour

#859DD9

  • #859DD9
  • Blue
  • Dark
  • Nearest: Steel blue

#859DD9 is a blue with RGB values 133, 157, 217 and HSL 223°, 52%, 69%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#859DD9#859DD9
HEX#859DD9
RGBrgb(133, 157, 217)
RGB (0–1)0.5216, 0.6157, 0.851
RGB percentages52.2%, 61.6%, 85.1%
HSLhsl(222.9, 52.5%, 68.6%)
HSV / HSBhsv(222.9, 38.7%, 85.1%)
CMYK38.7%, 27.6%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,756,697
CSS custom property--colour: #859DD9;

Brightness & contrast

Relative luminance0.3411WCAG 2.x, 0 is black and 1 is white
Perceived brightness158.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.82:1
Contrast with white2.68:1WCAG normal text: Fail
Contrast with black7.82:1WCAG normal text: AAA
Greyscale equivalent#9C9C9C
Inverted#7A6226

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#89A2DCno red cones; affects about 1% of men; ΔE 2.2 from the original
Deuteranopia#819AD8no green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#6AA9B2no blue cones; rare, and affects men and women equally; ΔE 32.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.68:1WCAG large text: Fail
Contrast with black, large text7.82:1WCAG large text: AAA

Named colours

Steel blue · ΔE 16.4Cornflower blue · ΔE 16.6Light skyblue · ΔE 23.2Light steelblue · ΔE 23.7Light slate grey · ΔE 25.5Deep skyblue · ΔE 26.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 16.44, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D9C185
Analogous#85C7D9, #9785D9
Triadic#D9859D, #9DD985
Split complementary#D99785, #C7D985
Tetradic#D985C7, #D9C185, #85D997

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FAFBFD
Lighter +20%#D3DBF1
Lighter +10%#ACBCE5
Darker −10%#5E7ECD
Darker −20%#3B60BD
Darker −30%#2F4C96
Darker −40%#23396F
More saturated +25%#7194ED
Less saturated −25%#99A6C5

Channel breakdown

R133
G157
B217
Red133 (52.2%)
Green157 (61.6%)
Blue217 (85.1%)
Hue222.86°
Saturation (HSL)52.5%
Lightness68.63%
Dominant channelBlue
Hex per channelR 85 · G 9D · B D9

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Every value on this page was computed from “859dd9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.