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Recognised as Colour

#1C385A

  • #1C385A
  • Blue
  • Dark
  • Nearest: Dark slate grey

#1C385A is a blue with RGB values 28, 56, 90 and HSL 213°, 53%, 23%. It is a dark colour, so white text on it reaches 11.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1C385A#1C385A
HEX#1C385A
RGBrgb(28, 56, 90)
RGB (0–1)0.1098, 0.2196, 0.3529
RGB percentages11%, 22%, 35.3%
HSLhsl(212.9, 52.5%, 23.1%)
HSV / HSBhsv(212.9, 68.9%, 35.3%)
CMYK68.9%, 37.8%, 0%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,849,434
CSS custom property--colour: #1C385A;

Brightness & contrast

Relative luminance0.03813WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.91:1
Contrast with white11.91:1WCAG normal text: AAA
Contrast with black1.76:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#E3C7A5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#293A5Bno red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#213459no green cones; the most common form, about 1% of men; ΔE 3.8 from the original
Tritanopia#004044no blue cones; rare, and affects men and women equally; ΔE 24.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.91:1WCAG large text: AAA
Contrast with black, large text1.76:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 25.3Steel blue · ΔE 31.2Dark slateblue · ΔE 31.5Dim grey · ΔE 31.8Slate grey · ΔE 32.7Black · ΔE 33
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 25.33, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A3E1C
Analogous#1C575A, #1F1C5A
Triadic#5A1C38, #385A1C
Split complementary#5A1F1C, #575A1C
Tetradic#5A1C57, #5A3E1C, #1C5A1F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#709CD2
Lighter +30%#4981C6
Lighter +20%#3468A8
Lighter +10%#285081
Darker −10%#102033
Darker −20%#04080C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0D3769
Less saturated −25%#2B394B

Channel breakdown

R28
G56
B90
Red28 (11%)
Green56 (22%)
Blue90 (35.3%)
Hue212.9°
Saturation (HSL)52.54%
Lightness23.14%
Dominant channelBlue
Hex per channelR 1C · G 38 · B 5A

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Every value on this page was computed from “1c385a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.