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Recognised as Colour

#1C33D4

  • #1C33D4
  • Blue
  • Dark
  • Nearest: Medium blue

#1C33D4 is a blue with RGB values 28, 51, 212 and HSL 233°, 77%, 47%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1C33D4#1C33D4
HEX#1C33D4
RGBrgb(28, 51, 212)
RGB (0–1)0.1098, 0.2, 0.8314
RGB percentages11%, 20%, 83.1%
HSLhsl(232.5, 76.7%, 47.1%)
HSV / HSBhsv(232.5, 86.8%, 83.1%)
CMYK86.8%, 75.9%, 0%, 16.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,848,276
CSS custom property--colour: #1C33D4;

Brightness & contrast

Relative luminance0.07368WCAG 2.x, 0 is black and 1 is white
Perceived brightness83 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.49:1
Contrast with white8.49:1WCAG normal text: AAA
Contrast with black2.47:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#E3CC2B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0056D9no red cones; affects about 1% of men; ΔE 24.5 from the original
Deuteranopia#0043D1no green cones; the most common form, about 1% of men; ΔE 13.2 from the original
Tritanopia#006482no blue cones; rare, and affects men and women equally; ΔE 88 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.49:1WCAG large text: AAA
Contrast with black, large text2.47:1WCAG large text: Fail

Named colours

Medium blue · ΔE 19.5Blue violet · ΔE 22.2Dark blue · ΔE 22.8Navy · ΔE 27Medium slateblue · ΔE 28.2Dark orchid · ΔE 28.6
Nearest named CSS colourMedium blue (#0000CD)ΔE 19.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D4BD1C
Analogous#1C8FD4, #611CD4
Triadic#D41C33, #33D41C
Split complementary#D4611C, #8FD41C
Tetradic#D41C8F, #D4BD1C, #1CD461

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C5CBF7
Lighter +30%#98A3F1
Lighter +20%#6B7BEB
Lighter +10%#3E53E5
Darker −10%#1628A7
Darker −20%#101D7A
Darker −30%#0A124D
Darker −40%#040820
More saturated +25%#001EF0
Less saturated −25%#3A49B6

Channel breakdown

R28
G51
B212
Red28 (11%)
Green51 (20%)
Blue212 (83.1%)
Hue232.5°
Saturation (HSL)76.67%
Lightness47.06%
Dominant channelBlue
Hex per channelR 1C · G 33 · B D4

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Every value on this page was computed from “1c33d4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.