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Recognised as Colour

#1A57BE

  • #1A57BE
  • Blue
  • Dark
  • Nearest: Royal blue

#1A57BE is a blue with RGB values 26, 87, 190 and HSL 218°, 76%, 42%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1A57BE#1A57BE
HEX#1A57BE
RGBrgb(26, 87, 190)
RGB (0–1)0.102, 0.3412, 0.7451
RGB percentages10.2%, 34.1%, 74.5%
HSLhsl(217.7, 75.9%, 42.4%)
HSV / HSBhsv(217.7, 86.3%, 74.5%)
CMYK86.3%, 54.2%, 0%, 25.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,726,398
CSS custom property--colour: #1A57BE;

Brightness & contrast

Relative luminance0.10754WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.67:1
Contrast with white6.67:1WCAG normal text: AA
Contrast with black3.15:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#E5A841

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064C2no red cones; affects about 1% of men; ΔE 9.6 from the original
Deuteranopia#0055BCno green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#007182no blue cones; rare, and affects men and women equally; ΔE 59.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.67:1WCAG large text: AAA
Contrast with black, large text3.15:1WCAG large text: AA

Named colours

Royal blue · ΔE 11.9Slate blue · ΔE 16.6Dark slateblue · ΔE 19.9Dodgerblue · ΔE 23.3Medium purple · ΔE 24.4Medium slateblue · ΔE 24.9
Nearest named CSS colourRoyal blue (#4169E1)ΔE 11.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BE811A
Analogous#1AA9BE, #2F1ABE
Triadic#BE1A57, #57BE1A
Split complementary#BE2F1A, #A9BE1A
Tetradic#BE1AA9, #BE811A, #1ABE2F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B0C9F4
Lighter +30%#83ABEE
Lighter +20%#568CE8
Lighter +10%#296EE2
Darker −10%#144291
Darker −20%#0E2E64
Darker −30%#081937
Darker −40%#01050B
More saturated +25%#0050D8
Less saturated −25%#355EA3

Channel breakdown

R26
G87
B190
Red26 (10.2%)
Green87 (34.1%)
Blue190 (74.5%)
Hue217.68°
Saturation (HSL)75.93%
Lightness42.35%
Dominant channelBlue
Hex per channelR 1A · G 57 · B BE

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Every value on this page was computed from “1a57be” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.