Colour

#CD0400

#CD0400
Red
Dark
Nearest: Orange red

#CD0400 is a red with RGB values 205, 4, 0 and HSL 1°, 100%, 40%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#CD0400#CD0400

HEX#CD0400

RGBrgb(205, 4, 0)

RGB (0–1)0.8039, 0.0157, 0

RGB percentages80.4%, 1.6%, 0%

HSLhsl(1.2, 100%, 40.2%)

HSV / HSBhsv(1.2, 100%, 80.4%)

CMYK0%, 98%, 100%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,435,904

CSS custom property--colour: #CD0400;

Brightness & contrast

Relative luminance0.13066WCAG 2.x, 0 is black and 1 is white

Perceived brightness112.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.81:1

Contrast with white5.81:1WCAG normal text: AA

Contrast with black3.61:1WCAG normal text: Fail

Greyscale equivalent#2E2E2E

Inverted#32FBFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#574B00no red cones; affects about 1% of men; ΔE 73 from the original

Deuteranopia#837300no green cones; the most common form, about 1% of men; ΔE 72.2 from the original

Tritanopia#E3000Cno blue cones; rare, and affects men and women equally; ΔE 7.5 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text5.81:1WCAG large text: AAA

Contrast with black, large text3.61:1WCAG large text: AA

Named colours

Orange red · ΔE 18.9 Red · ΔE 19.2 Firebrick · ΔE 22.9 Crimson · ΔE 24.1 Tomato · ΔE 24.1 Dark red · ΔE 27.2

Nearest named CSS colourOrange red (#FF4500)ΔE 18.93, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#00C9CD

Analogous#CD0063, #CD6B00

Triadic#00CD04, #0400CD

Split complementary#00CD6A, #0063CD

Tetradic#62CD00, #00C9CD, #6B00CD

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FF9C9A

Lighter +30%#FF6A67

Lighter +20%#FF3834

Lighter +10%#FF0601

Darker −10%#9A0300

Darker −20%#670200

Darker −30%#340100

Darker −40%#010000

More saturated +25%#CD0400

Less saturated −25%#B31D1A

Channel breakdown

R205

Red205 (80.4%)

Green4 (1.6%)

Blue0 (0%)

Hue1.17°

Saturation (HSL)100%

Lightness40.2%

Dominant channelRed

Hex per channelR CD · G 04 · B 00

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#CD0400

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

Nerdulate something else