Nerdulator> put something in

Recognised as Colour

#21232E

  • #21232E
  • Blue
  • Dark
  • Nearest: Black

#21232E is a blue with RGB values 33, 35, 46 and HSL 231°, 16%, 15%. It is a dark colour, so white text on it reaches 15.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#21232E#21232E
HEX#21232E
RGBrgb(33, 35, 46)
RGB (0–1)0.1294, 0.1373, 0.1804
RGB percentages12.9%, 13.7%, 18%
HSLhsl(230.8, 16.5%, 15.5%)
HSV / HSBhsv(230.8, 28.3%, 18%)
CMYK28.3%, 23.9%, 0%, 82%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,171,694
CSS custom property--colour: #21232E;

Brightness & contrast

Relative luminance0.01723WCAG 2.x, 0 is black and 1 is white
Perceived brightness35.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.62:1
Contrast with white15.62:1WCAG normal text: AAA
Contrast with black1.34:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#DEDCD1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#20242Fno red cones; affects about 1% of men; ΔE 0.9 from the original
Deuteranopia#1F232Eno green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#1E2527no blue cones; rare, and affects men and women equally; ΔE 7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.62:1WCAG large text: AAA
Contrast with black, large text1.34:1WCAG large text: Fail

Named colours

Black · ΔE 16Dark slate grey · ΔE 22.5Dim grey · ΔE 31.5Slate grey · ΔE 39.2Gray · ΔE 40.4Light slate grey · ΔE 42.3
Nearest named CSS colourBlack (#000000)ΔE 16.02, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2E2C21
Analogous#212A2E, #25212E
Triadic#2E2123, #232E21
Split complementary#2E2621, #2A2E21
Tetradic#2E212A, #2E2C21, #212E26

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7B81A0
Lighter +30%#616787
Lighter +20%#4C5069
Lighter +10%#363A4C
Darker −10%#0C0C10
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#171C38
Less saturated −25%#282828

Channel breakdown

R33
G35
B46
Red33 (12.9%)
Green35 (13.7%)
Blue46 (18%)
Hue230.77°
Saturation (HSL)16.46%
Lightness15.49%
Dominant channelBlue
Hex per channelR 21 · G 23 · B 2E

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 “21232e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.