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Recognised as Colour

#2987BB

  • #2987BB
  • Blue
  • Dark
  • Nearest: Steel blue

#2987BB is a blue with RGB values 41, 135, 187 and HSL 201°, 64%, 45%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#2987BB#2987BB
HEX#2987BB
RGBrgb(41, 135, 187)
RGB (0–1)0.1608, 0.5294, 0.7333
RGB percentages16.1%, 52.9%, 73.3%
HSLhsl(201.4, 64%, 44.7%)
HSV / HSBhsv(201.4, 78.1%, 73.3%)
CMYK78.1%, 27.8%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,721,723
CSS custom property--colour: #2987BB;

Brightness & contrast

Relative luminance0.21387WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.28:1
Contrast with white3.98:1WCAG normal text: Fail
Contrast with black5.28:1WCAG normal text: AA
Greyscale equivalent#777777
Inverted#D67844

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6E87BDno red cones; affects about 1% of men; ΔE 15 from the original
Deuteranopia#5A79BAno green cones; the most common form, about 1% of men; ΔE 16.9 from the original
Tritanopia#009499no blue cones; rare, and affects men and women equally; ΔE 31.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.98:1WCAG large text: AA
Contrast with black, large text5.28:1WCAG large text: AAA

Named colours

Steel blue · ΔE 5.7Deep skyblue · ΔE 22.4Light slate grey · ΔE 24.8Cornflower blue · ΔE 24.9Slate grey · ΔE 25.2Light skyblue · ΔE 27.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 5.67, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BB5D29
Analogous#29BBA6, #293EBB
Triadic#BB2987, #87BB29
Split complementary#BB293E, #BBA629
Tetradic#A629BB, #BB5D29, #3EBB29

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BFDFF1
Lighter +30%#95CAE8
Lighter +20%#6BB6DF
Lighter +10%#42A1D5
Darker −10%#206991
Darker −20%#174B67
Darker −30%#0D2C3E
Darker −40%#040E14
More saturated +25%#0C8FD7
Less saturated −25%#467F9F

Channel breakdown

R41
G135
B187
Red41 (16.1%)
Green135 (52.9%)
Blue187 (73.3%)
Hue201.37°
Saturation (HSL)64.04%
Lightness44.71%
Dominant channelBlue
Hex per channelR 29 · G 87 · B BB

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Every value on this page was computed from “2987bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.