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Colour

#1A87FF

  • #1A87FF
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1A87FF is a blue with RGB values 26, 135, 255 and HSL 211°, 100%, 55%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1A87FF#1A87FF
HEX#1A87FF
RGBrgb(26, 135, 255)
RGB (0–1)0.102, 0.5294, 1
RGB percentages10.2%, 52.9%, 100%
HSLhsl(211.4, 100%, 55.1%)
HSV / HSBhsv(211.4, 89.8%, 100%)
CMYK89.8%, 47.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,738,751
CSS custom property--colour: #1A87FF;

Brightness & contrast

Relative luminance0.24768WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.95:1
Contrast with white3.53:1WCAG normal text: Fail
Contrast with black5.95:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#E57800

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4093FFno red cones; affects about 1% of men; ΔE 8.8 from the original
Deuteranopia#007FFDno green cones; the most common form, about 1% of men; ΔE 5.2 from the original
Tritanopia#00A4B7no blue cones; rare, and affects men and women equally; ΔE 64.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.53:1WCAG large text: AA
Contrast with black, large text5.95:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 7.1Royal blue · ΔE 14.4Cornflower blue · ΔE 19.8Slate blue · ΔE 25.7Medium slateblue · ΔE 26.3Medium purple · ΔE 27.8
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 7.14, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF921A
Analogous#1AF9FF, #201AFF
Triadic#FF1A87, #87FF1A
Split complementary#FF201A, #F9FF1A
Tetradic#FF1AF9, #FF921A, #1AFF20

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E6F2FF
Lighter +30%#B3D7FF
Lighter +20%#80BCFF
Lighter +10%#4DA2FF
Darker −10%#006DE6
Darker −20%#0055B3
Darker −30%#003D80
Darker −40%#00254D
More saturated +25%#1A87FF
Less saturated −25%#3788E2

Channel breakdown

R26
G135
B255
Red26 (10.2%)
Green135 (52.9%)
Blue255 (100%)
Hue211.44°
Saturation (HSL)100%
Lightness55.1%
Dominant channelBlue
Hex per channelR 1A · G 87 · B FF

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Every value on this page was computed from “1a87ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.