Nerdulator> put something in

Recognised as Colour

#577DA2

  • #577DA2
  • Blue
  • Dark
  • Nearest: Steel blue

#577DA2 is a blue with RGB values 87, 125, 162 and HSL 210°, 30%, 49%. 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

#577DA2#577DA2
HEX#577DA2
RGBrgb(87, 125, 162)
RGB (0–1)0.3412, 0.4902, 0.6353
RGB percentages34.1%, 49%, 63.5%
HSLhsl(209.6, 30.1%, 48.8%)
HSV / HSBhsv(209.6, 46.3%, 63.5%)
CMYK46.3%, 22.8%, 0%, 36.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,733,794
CSS custom property--colour: #577DA2;

Brightness & contrast

Relative luminance0.19302WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.86:1
Contrast with white4.32:1WCAG normal text: Fail
Contrast with black4.86:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#A8825D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6E7EA4no red cones; affects about 1% of men; ΔE 6.9 from the original
Deuteranopia#6576A1no green cones; the most common form, about 1% of men; ΔE 7.9 from the original
Tritanopia#388689no blue cones; rare, and affects men and women equally; ΔE 24.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.32:1WCAG large text: AA
Contrast with black, large text4.86:1WCAG large text: AAA

Named colours

Steel blue · ΔE 8.4Slate grey · ΔE 13.5Light slate grey · ΔE 13.7Gray · ΔE 24.3Dim grey · ΔE 25Cadetblue · ΔE 25.6
Nearest named CSS colourSteel blue (#4682B4)ΔE 8.45, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A27C57
Analogous#57A2A2, #5757A2
Triadic#A2577D, #7DA257
Split complementary#A25757, #A2A257
Tetradic#A257A2, #A27C57, #57A257

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DAE3EB
Lighter +30%#B9C9D9
Lighter +20%#98B0C7
Lighter +10%#7696B6
Darker −10%#456381
Darker −20%#334A60
Darker −30%#22303E
Darker −40%#10171D
More saturated +25%#387DC1
Less saturated −25%#767D83

Channel breakdown

R87
G125
B162
Red87 (34.1%)
Green125 (49%)
Blue162 (63.5%)
Hue209.6°
Saturation (HSL)30.12%
Lightness48.82%
Dominant channelBlue
Hex per channelR 57 · G 7D · B A2

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “577da2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.