Colour
#1C0404
- #1C0404
- Red
- Dark
- Nearest: Black
#1C0404 is a red with RGB values 28, 4, 4 and HSL 0°, 75%, 6%. It is a dark colour, so white text on it reaches 19.7:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#1C0404#1C0404
HEX#1C0404
RGBrgb(28, 4, 4)
RGB (0–1)0.1098, 0.0157, 0.0157
RGB percentages11%, 1.6%, 1.6%
HSLhsl(0, 75%, 6.3%)
HSV / HSBhsv(0, 85.7%, 11%)
CMYK0%, 85.7%, 85.7%, 89%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,836,036
CSS custom property--colour: #1C0404;
Brightness & contrast
Relative luminance0.00342WCAG 2.x, 0 is black and 1 is white
Perceived brightness15.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.65:1
Contrast with white19.65:1WCAG normal text: AAA
Contrast with black1.07:1WCAG normal text: Fail
Greyscale equivalent#090909
Inverted#E3FBFB
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.65:1WCAG large text: AAA
Contrast with black, large text1.07:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#041C1C
Analogous#1C0410, #1C1004
Triadic#041C04, #04041C
Split complementary#041C10, #04101C
Tetradic#101C04, #041C1C, #10041C
Tints, shades & saturation
Channel breakdown
R28
G4
B4
Red28 (11%)
Green4 (1.6%)
Blue4 (1.6%)
Hue0°
Saturation (HSL)75%
Lightness6.27%
Dominant channelRed
Hex per channelR 1C · G 04 · B 04
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