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Recognised as Colour

#157FC9

  • #157FC9
  • Blue
  • Dark
  • Nearest: Steel blue

#157FC9 is a blue with RGB values 21, 127, 201 and HSL 205°, 81%, 44%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#157FC9#157FC9
HEX#157FC9
RGBrgb(21, 127, 201)
RGB (0–1)0.0824, 0.498, 0.7882
RGB percentages8.2%, 49.8%, 78.8%
HSLhsl(204.7, 81.1%, 43.5%)
HSV / HSBhsv(204.7, 89.6%, 78.8%)
CMYK89.6%, 36.8%, 0%, 21.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,408,969
CSS custom property--colour: #157FC9;

Brightness & contrast

Relative luminance0.19555WCAG 2.x, 0 is black and 1 is white
Perceived brightness119.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.91:1
Contrast with white4.28:1WCAG normal text: Fail
Contrast with black4.91:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#EA8036

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5B83CCno red cones; affects about 1% of men; ΔE 9.9 from the original
Deuteranopia#4173C8no green cones; the most common form, about 1% of men; ΔE 12.4 from the original
Tritanopia#00919Ano blue cones; rare, and affects men and women equally; ΔE 42.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.28:1WCAG large text: AA
Contrast with black, large text4.91:1WCAG large text: AAA

Named colours

Steel blue · ΔE 14.3Cornflower blue · ΔE 15Dodgerblue · ΔE 21.9Deep skyblue · ΔE 27.4Royal blue · ΔE 33.3Dark slateblue · ΔE 34
Nearest named CSS colourSteel blue (#4682B4)ΔE 14.33, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C95F15
Analogous#15C9B9, #1525C9
Triadic#C9157F, #7FC915
Split complementary#C91525, #C9B915
Tetradic#B915C9, #C95F15, #25C915

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B3DBF7
Lighter +30%#85C5F2
Lighter +20%#57AFED
Lighter +10%#289AE9
Darker −10%#10629B
Darker −20%#0B456D
Darker −30%#07273E
Darker −40%#020A10
More saturated +25%#0083DE
Less saturated −25%#317AAD

Channel breakdown

R21
G127
B201
Red21 (8.2%)
Green127 (49.8%)
Blue201 (78.8%)
Hue204.67°
Saturation (HSL)81.08%
Lightness43.53%
Dominant channelBlue
Hex per channelR 15 · G 7F · B C9

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Every value on this page was computed from “157fc9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.