Nerdulator> put something in

Colour

#153A75

  • #153A75
  • Blue
  • Dark
  • Nearest: Dark slateblue

#153A75 is a blue with RGB values 21, 58, 117 and HSL 217°, 70%, 27%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#153A75#153A75
HEX#153A75
RGBrgb(21, 58, 117)
RGB (0–1)0.0824, 0.2275, 0.4588
RGB percentages8.2%, 22.7%, 45.9%
HSLhsl(216.9, 69.6%, 27.1%)
HSV / HSBhsv(216.9, 82.1%, 45.9%)
CMYK82.1%, 50.4%, 0%, 54.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,391,221
CSS custom property--colour: #153A75;

Brightness & contrast

Relative luminance0.0447WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.09:1
Contrast with white11.09:1WCAG normal text: AAA
Contrast with black1.89:1WCAG normal text: Fail
Greyscale equivalent#363636
Inverted#EAC58A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#184077no red cones; affects about 1% of men; ΔE 4.2 from the original
Deuteranopia#003874no green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#004852no blue cones; rare, and affects men and women equally; ΔE 36.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.09:1WCAG large text: AAA
Contrast with black, large text1.89:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17.3Midnight blue · ΔE 26.2Steel blue · ΔE 31.3Rebecca purple · ΔE 34.8Slate blue · ΔE 38.4Cornflower blue · ΔE 38.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.32, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#755015
Analogous#156A75, #201575
Triadic#75153A, #3A7515
Split complementary#752015, #6A7515
Tetradic#75156A, #755015, #157520

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#719EE5
Lighter +30%#4580DE
Lighter +20%#2565CB
Lighter +10%#1D4FA0
Darker −10%#0D254A
Darker −20%#050F1F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#043686
Less saturated −25%#263E64

Channel breakdown

R21
G58
B117
Red21 (8.2%)
Green58 (22.7%)
Blue117 (45.9%)
Hue216.88°
Saturation (HSL)69.57%
Lightness27.06%
Dominant channelBlue
Hex per channelR 15 · G 3A · B 75

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 “153a75” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.