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Colour

#1C203B

  • #1C203B
  • Blue
  • Dark
  • Nearest: Black

#1C203B is a blue with RGB values 28, 32, 59 and HSL 232°, 36%, 17%. It is a dark colour, so white text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1C203B#1C203B
HEX#1C203B
RGBrgb(28, 32, 59)
RGB (0–1)0.1098, 0.1255, 0.2314
RGB percentages11%, 12.5%, 23.1%
HSLhsl(232.3, 35.6%, 17.1%)
HSV / HSBhsv(232.3, 52.5%, 23.1%)
CMYK52.5%, 45.8%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,843,259
CSS custom property--colour: #1C203B;

Brightness & contrast

Relative luminance0.01596WCAG 2.x, 0 is black and 1 is white
Perceived brightness35.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.92:1
Contrast with white15.92:1WCAG normal text: AAA
Contrast with black1.32:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#E3DFC4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#16233Cno red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#13213Ano green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#11262Ano blue cones; rare, and affects men and women equally; ΔE 19 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.92:1WCAG large text: AAA
Contrast with black, large text1.32:1WCAG large text: Fail

Named colours

Black · ΔE 23.4Dark slate grey · ΔE 29.7Dark slateblue · ΔE 35.4Dim grey · ΔE 36.7Midnight blue · ΔE 40.2Slate grey · ΔE 41.4
Nearest named CSS colourBlack (#000000)ΔE 23.42, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3B371C
Analogous#1C303B, #281C3B
Triadic#3B1C20, #203B1C
Split complementary#3B281C, #303B1C
Tetradic#3B1C30, #3B371C, #1C3B27

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6A75B9
Lighter +30%#4D58A3
Lighter +20%#3D4680
Lighter +10%#2C335E
Darker −10%#0C0D18
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#111846
Less saturated −25%#272830

Channel breakdown

R28
G32
B59
Red28 (11%)
Green32 (12.5%)
Blue59 (23.1%)
Hue232.26°
Saturation (HSL)35.63%
Lightness17.06%
Dominant channelBlue
Hex per channelR 1C · G 20 · B 3B

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Every value on this page was computed from “1c203b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.