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Recognised as Colour

#257AC7

  • #257AC7
  • Blue
  • Dark
  • Nearest: Cornflower blue

#257AC7 is a blue with RGB values 37, 122, 199 and HSL 209°, 69%, 46%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#257AC7#257AC7
HEX#257AC7
RGBrgb(37, 122, 199)
RGB (0–1)0.1451, 0.4784, 0.7804
RGB percentages14.5%, 47.8%, 78%
HSLhsl(208.5, 68.6%, 46.3%)
HSV / HSBhsv(208.5, 81.4%, 78%)
CMYK81.4%, 38.7%, 0%, 22%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,456,263
CSS custom property--colour: #257AC7;

Brightness & contrast

Relative luminance0.18436WCAG 2.x, 0 is black and 1 is white
Perceived brightness116.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.69:1
Contrast with white4.48:1WCAG normal text: Fail
Contrast with black4.69:1WCAG normal text: AA
Greyscale equivalent#6D6D6D
Inverted#DA8538

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#557FCAno red cones; affects about 1% of men; ΔE 7.3 from the original
Deuteranopia#3B70C5no green cones; the most common form, about 1% of men; ΔE 8.9 from the original
Tritanopia#008C97no blue cones; rare, and affects men and women equally; ΔE 44 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.48:1WCAG large text: AA
Contrast with black, large text4.69:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 13.8Steel blue · ΔE 16.5Dodgerblue · ΔE 20.2Royal blue · ΔE 29.9Dark slateblue · ΔE 30.6Deep skyblue · ΔE 30.7
Nearest named CSS colourCornflower blue (#6495ED)ΔE 13.81, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C77225
Analogous#25C7C3, #2529C7
Triadic#C7257A, #7AC725
Split complementary#C72529, #C7C325
Tetradic#C325C7, #C77225, #29C725

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C4DDF4
Lighter +30%#99C5EC
Lighter +20%#6EACE4
Lighter +10%#4393DC
Darker −10%#1D609C
Darker −20%#154571
Darker −30%#0D2B46
Darker −40%#05111B
More saturated +25%#087BE4
Less saturated −25%#4379A9

Channel breakdown

R37
G122
B199
Red37 (14.5%)
Green122 (47.8%)
Blue199 (78%)
Hue208.52°
Saturation (HSL)68.64%
Lightness46.27%
Dominant channelBlue
Hex per channelR 25 · G 7A · B C7

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Every value on this page was computed from “257ac7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.