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Recognised as Colour

#257BE2

  • #257BE2
  • Blue
  • Dark
  • Nearest: Dodgerblue

#257BE2 is a blue with RGB values 37, 123, 226 and HSL 213°, 77%, 52%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#257BE2#257BE2
HEX#257BE2
RGBrgb(37, 123, 226)
RGB (0–1)0.1451, 0.4824, 0.8863
RGB percentages14.5%, 48.2%, 88.6%
HSLhsl(212.7, 76.5%, 51.6%)
HSV / HSBhsv(212.7, 83.6%, 88.6%)
CMYK83.6%, 45.6%, 0%, 11.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,456,546
CSS custom property--colour: #257BE2;

Brightness & contrast

Relative luminance0.2005WCAG 2.x, 0 is black and 1 is white
Perceived brightness122.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.01:1
Contrast with white4.19:1WCAG normal text: Fail
Contrast with black5.01:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#DA841D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4385E6no red cones; affects about 1% of men; ΔE 5.8 from the original
Deuteranopia#0D74E0no green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#0094A3no blue cones; rare, and affects men and women equally; ΔE 57.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.19:1WCAG large text: AA
Contrast with black, large text5.01:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 8.8Cornflower blue · ΔE 14.5Royal blue · ΔE 15.7Slate blue · ΔE 24.6Medium purple · ΔE 26.3Medium slateblue · ΔE 29.4
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 8.85, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E28C25
Analogous#25D9E2, #2E25E2
Triadic#E2257B, #7BE225
Split complementary#E22E25, #D9E225
Tetradic#E225D9, #E28C25, #25E22E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D9E8FA
Lighter +30%#ACCDF4
Lighter +20%#7FB2EE
Lighter +10%#5296E8
Darker −10%#1963BB
Darker −20%#134B8E
Darker −30%#0D3361
Darker −40%#071B34
More saturated +25%#0878FF
Less saturated −25%#447EC3

Channel breakdown

R37
G123
B226
Red37 (14.5%)
Green123 (48.2%)
Blue226 (88.6%)
Hue212.7°
Saturation (HSL)76.52%
Lightness51.57%
Dominant channelBlue
Hex per channelR 25 · G 7B · B E2

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Every value on this page was computed from “257be2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.