Nerdulator> put something in

Recognised as Colour

#21327E

  • #21327E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#21327E is a blue with RGB values 33, 50, 126 and HSL 229°, 58%, 31%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#21327E#21327E
HEX#21327E
RGBrgb(33, 50, 126)
RGB (0–1)0.1294, 0.1961, 0.4941
RGB percentages12.9%, 19.6%, 49.4%
HSLhsl(229, 58.5%, 31.2%)
HSV / HSBhsv(229, 73.8%, 49.4%)
CMYK73.8%, 60.3%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,175,614
CSS custom property--colour: #21327E;

Brightness & contrast

Relative luminance0.04111WCAG 2.x, 0 is black and 1 is white
Perceived brightness60 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.52:1
Contrast with white11.52:1WCAG normal text: AAA
Contrast with black1.82:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#DECD81

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003E81no red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#00357Dno green cones; the most common form, about 1% of men; ΔE 5.6 from the original
Tritanopia#004553no blue cones; rare, and affects men and women equally; ΔE 46.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.52:1WCAG large text: AAA
Contrast with black, large text1.82:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 8.9Midnight blue · ΔE 14Rebecca purple · ΔE 23.5Slate blue · ΔE 28.9Royal blue · ΔE 31.6Indigo · ΔE 31.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 8.87, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7E6D21
Analogous#21617E, #3E217E
Triadic#7E2132, #327E21
Split complementary#7E3E21, #617E21
Tetradic#7E2161, #7E6D21, #217E3E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8B9AE0
Lighter +30%#6277D6
Lighter +20%#3A54CB
Lighter +10%#2C42A6
Darker −10%#162256
Darker −20%#0C122D
Darker −30%#010205
Darker −40%#000000
More saturated +25%#0D2592
Less saturated −25%#353F6A

Channel breakdown

R33
G50
B126
Red33 (12.9%)
Green50 (19.6%)
Blue126 (49.4%)
Hue229.03°
Saturation (HSL)58.49%
Lightness31.18%
Dominant channelBlue
Hex per channelR 21 · G 32 · B 7E

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 “21327e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.