Nerdulator> put something in

Recognised as Colour

#210B57

  • #210B57
  • Violet
  • Dark
  • Nearest: Midnight blue

#210B57 is a violet with RGB values 33, 11, 87 and HSL 257°, 78%, 19%. It is a dark colour, so white text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#210B57#210B57
HEX#210B57
RGBrgb(33, 11, 87)
RGB (0–1)0.1294, 0.0431, 0.3412
RGB percentages12.9%, 4.3%, 34.1%
HSLhsl(257.4, 77.6%, 19.2%)
HSV / HSBhsv(257.4, 87.4%, 34.1%)
CMYK62.1%, 87.4%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,165,591
CSS custom property--colour: #210B57;

Brightness & contrast

Relative luminance0.01251WCAG 2.x, 0 is black and 1 is white
Perceived brightness35.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.8:1
Contrast with white16.8:1WCAG normal text: AAA
Contrast with black1.25:1WCAG normal text: Fail
Greyscale equivalent#151515
Inverted#DEF4A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001F59no red cones; affects about 1% of men; ΔE 16.7 from the original
Deuteranopia#001B56no green cones; the most common form, about 1% of men; ΔE 14.8 from the original
Tritanopia#062232no blue cones; rare, and affects men and women equally; ΔE 45.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.8:1WCAG large text: AAA
Contrast with black, large text1.25:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 9.8Dark slateblue · ΔE 20.8Indigo · ΔE 25.1Rebecca purple · ΔE 25.3Navy · ΔE 28.3Purple · ΔE 33.2
Nearest named CSS colourMidnight blue (#191970)ΔE 9.81, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#41570B
Analogous#0B1B57, #470B57
Triadic#57210B, #0B5721
Split complementary#57470B, #1B570B
Tetradic#570B1B, #41570B, #0B5747

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7546E8
Lighter +30%#551CDF
Lighter +20%#4316B2
Lighter +10%#321184
Darker −10%#10052A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1C0062
Less saturated −25%#26174B

Channel breakdown

R33
G11
B87
Red33 (12.9%)
Green11 (4.3%)
Blue87 (34.1%)
Hue257.37°
Saturation (HSL)77.55%
Lightness19.22%
Dominant channelBlue
Hex per channelR 21 · G 0B · B 57

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 “210b57” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.