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Colour

#315A99

  • #315A99
  • Blue
  • Dark
  • Nearest: Steel blue

#315A99 is a blue with RGB values 49, 90, 153 and HSL 216°, 51%, 40%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#315A99#315A99
HEX#315A99
RGBrgb(49, 90, 153)
RGB (0–1)0.1922, 0.3529, 0.6
RGB percentages19.2%, 35.3%, 60%
HSLhsl(216.3, 51.5%, 39.6%)
HSV / HSBhsv(216.3, 68%, 60%)
CMYK68%, 41.2%, 0%, 40%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,234,457
CSS custom property--colour: #315A99;

Brightness & contrast

Relative luminance0.10265WCAG 2.x, 0 is black and 1 is white
Perceived brightness90.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.88:1
Contrast with white6.88:1WCAG normal text: AA
Contrast with black3.05:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#CEA566

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3D5F9Bno red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#2D5698no green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#006872no blue cones; rare, and affects men and women equally; ΔE 38.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.88:1WCAG large text: AAA
Contrast with black, large text3.05:1WCAG large text: AA

Named colours

Steel blue · ΔE 19.2Dark slateblue · ΔE 20.7Cornflower blue · ΔE 26Dodgerblue · ΔE 32.6Slate grey · ΔE 33Light slate grey · ΔE 34
Nearest named CSS colourSteel blue (#4682B4)ΔE 19.17, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#997031
Analogous#318E99, #3C3199
Triadic#99315A, #5A9931
Split complementary#993C31, #8E9931
Tetradic#99318E, #997031, #31993C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B0C5E6
Lighter +30%#8AA9D9
Lighter +20%#638DCD
Lighter +10%#3D71C0
Darker −10%#254372
Darker −20%#182D4C
Darker −30%#0C1625
Darker −40%#000000
More saturated +25%#1855B2
Less saturated −25%#4A5F80

Channel breakdown

R49
G90
B153
Red49 (19.2%)
Green90 (35.3%)
Blue153 (60%)
Hue216.35°
Saturation (HSL)51.49%
Lightness39.61%
Dominant channelBlue
Hex per channelR 31 · G 5A · B 99

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Every value on this page was computed from “315a99” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.