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Recognised as Colour

#257ACE

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

#257ACE is a blue with RGB values 37, 122, 206 and HSL 210°, 70%, 48%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#257ACE#257ACE
HEX#257ACE
RGBrgb(37, 122, 206)
RGB (0–1)0.1451, 0.4784, 0.8078
RGB percentages14.5%, 47.8%, 80.8%
HSLhsl(209.8, 69.5%, 47.6%)
HSV / HSBhsv(209.8, 82%, 80.8%)
CMYK82%, 40.8%, 0%, 19.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,456,270
CSS custom property--colour: #257ACE;

Brightness & contrast

Relative luminance0.18769WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.75:1
Contrast with white4.42:1WCAG normal text: Fail
Contrast with black4.75:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#DA8531

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5080D1no red cones; affects about 1% of men; ΔE 6 from the original
Deuteranopia#3371CCno green cones; the most common form, about 1% of men; ΔE 7.2 from the original
Tritanopia#008E9Ano blue cones; rare, and affects men and women equally; ΔE 47.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.42:1WCAG large text: AA
Contrast with black, large text4.75:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.2Dodgerblue · ΔE 16.5Steel blue · ΔE 20.6Royal blue · ΔE 25.8Dark slateblue · ΔE 29.7Medium purple · ΔE 31.8
Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.23, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CE7925
Analogous#25CECE, #2525CE
Triadic#CE257A, #7ACE25
Split complementary#CE2525, #CECE25
Tetradic#CE25CE, #CE7925, #25CE25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CAE0F5
Lighter +30%#9EC6EE
Lighter +20%#73ADE6
Lighter +10%#4893DE
Darker −10%#1D60A3
Darker −20%#154778
Darker −30%#0E2D4C
Darker −40%#061421
More saturated +25%#077AEC
Less saturated −25%#437AB0

Channel breakdown

R37
G122
B206
Red37 (14.5%)
Green122 (47.8%)
Blue206 (80.8%)
Hue209.82°
Saturation (HSL)69.55%
Lightness47.65%
Dominant channelBlue
Hex per channelR 25 · G 7A · B CE

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