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Colour

#5B87CB

  • #5B87CB
  • Blue
  • Dark
  • Nearest: Cornflower blue

#5B87CB is a blue with RGB values 91, 135, 203 and HSL 216°, 52%, 58%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#5B87CB#5B87CB
HEX#5B87CB
RGBrgb(91, 135, 203)
RGB (0–1)0.3569, 0.5294, 0.7961
RGB percentages35.7%, 52.9%, 79.6%
HSLhsl(216.4, 51.9%, 57.6%)
HSV / HSBhsv(216.4, 55.2%, 79.6%)
CMYK55.2%, 33.5%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,998,539
CSS custom property--colour: #5B87CB;

Brightness & contrast

Relative luminance0.23864WCAG 2.x, 0 is black and 1 is white
Perceived brightness133.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.77:1
Contrast with white3.64:1WCAG normal text: Fail
Contrast with black5.77:1WCAG normal text: AA
Greyscale equivalent#838383
Inverted#A47834

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6C8CCEno red cones; affects about 1% of men; ΔE 3.8 from the original
Deuteranopia#5E81CAno green cones; the most common form, about 1% of men; ΔE 4.6 from the original
Tritanopia#1296A0no blue cones; rare, and affects men and women equally; ΔE 41.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.64:1WCAG large text: AA
Contrast with black, large text5.77:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.1Steel blue · ΔE 12.2Dodgerblue · ΔE 24.4Deep skyblue · ΔE 28.1Light slate grey · ΔE 29.5Slate grey · ΔE 30.2
Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.12, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CB9F5B
Analogous#5BBFCB, #675BCB
Triadic#CB5B87, #87CB5B
Split complementary#CB675B, #BFCB5B
Tetradic#CB5BBF, #CB9F5B, #5BCB67

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F6F8FC
Lighter +30%#CFDCF0
Lighter +20%#A8C0E4
Lighter +10%#82A3D7
Darker −10%#3B6CB8
Darker −20%#2E5592
Darker −30%#223F6B
Darker −40%#162844
More saturated +25%#4081E6
Less saturated −25%#768DB0

Channel breakdown

R91
G135
B203
Red91 (35.7%)
Green135 (52.9%)
Blue203 (79.6%)
Hue216.43°
Saturation (HSL)51.85%
Lightness57.65%
Dominant channelBlue
Hex per channelR 5B · G 87 · B CB

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Every value on this page was computed from “5b87cb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.