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Recognised as Colour

#257CAE

  • #257CAE
  • Blue
  • Dark
  • Nearest: Steel blue

#257CAE is a blue with RGB values 37, 124, 174 and HSL 202°, 65%, 41%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#257CAE#257CAE
HEX#257CAE
RGBrgb(37, 124, 174)
RGB (0–1)0.1451, 0.4863, 0.6824
RGB percentages14.5%, 48.6%, 68.2%
HSLhsl(201.9, 64.9%, 41.4%)
HSV / HSBhsv(201.9, 78.7%, 68.2%)
CMYK78.7%, 28.7%, 0%, 31.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,456,750
CSS custom property--colour: #257CAE;

Brightness & contrast

Relative luminance0.17865WCAG 2.x, 0 is black and 1 is white
Perceived brightness113.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.59:1
Contrast with white4.59:1WCAG normal text: AA
Contrast with black4.57:1WCAG normal text: AA
Greyscale equivalent#6D6D6D
Inverted#DA8351

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#647CB0no red cones; affects about 1% of men; ΔE 13.7 from the original
Deuteranopia#5270ADno green cones; the most common form, about 1% of men; ΔE 15.1 from the original
Tritanopia#00898Dno blue cones; rare, and affects men and women equally; ΔE 31.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.59:1WCAG large text: AAA
Contrast with black, large text4.57:1WCAG large text: AAA

Named colours

Steel blue · ΔE 5.1Slate grey · ΔE 24.1Light slate grey · ΔE 24.2Cornflower blue · ΔE 26.4Deep skyblue · ΔE 26.7Light skyblue · ΔE 31
Nearest named CSS colourSteel blue (#4682B4)ΔE 5.09, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AE5725
Analogous#25AE9B, #2538AE
Triadic#AE257C, #7CAE25
Split complementary#AE2538, #AE9C25
Tetradic#9B25AE, #AE5725, #37AE25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B1D8EE
Lighter +30%#87C3E5
Lighter +20%#5DAEDC
Lighter +10%#3299D4
Darker −10%#1C5E84
Darker −20%#13405A
Darker −30%#0A2230
Darker −40%#010406
More saturated +25%#0B83C8
Less saturated −25%#3F7594

Channel breakdown

R37
G124
B174
Red37 (14.5%)
Green124 (48.6%)
Blue174 (68.2%)
Hue201.9°
Saturation (HSL)64.93%
Lightness41.37%
Dominant channelBlue
Hex per channelR 25 · G 7C · B AE

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