Colour

#FD3937

#FD3937
Red
Dark
Nearest: Tomato

#FD3937 is a red with RGB values 253, 57, 55 and HSL 1°, 98%, 60%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#FD3937#FD3937

HEX#FD3937

RGBrgb(253, 57, 55)

RGB (0–1)0.9922, 0.2235, 0.2157

RGB percentages99.2%, 22.4%, 21.6%

HSLhsl(0.6, 98%, 60.4%)

HSV / HSBhsv(0.6, 78.3%, 99.2%)

CMYK0%, 77.5%, 78.3%, 0.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,595,255

CSS custom property--colour: #FD3937;

Brightness & contrast

Relative luminance0.24085WCAG 2.x, 0 is black and 1 is white

Perceived brightness146.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.82:1

Contrast with white3.61:1WCAG normal text: Fail

Contrast with black5.82:1WCAG normal text: AA

Greyscale equivalent#636363

Inverted#02C6C8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#776B34no red cones; affects about 1% of men; ΔE 77.2 from the original

Deuteranopia#A7962Eno green cones; the most common form, about 1% of men; ΔE 77.7 from the original

Tritanopia#FF003Cno blue cones; rare, and affects men and women equally; ΔE 11.1 from the original

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

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

Contrast with black, large text5.82:1WCAG large text: AAA

Named colours

Tomato · ΔE 15.2 Crimson · ΔE 17.3 Red · ΔE 20.9 Orange red · ΔE 21.1 Firebrick · ΔE 25.6 Coral · ΔE 28.6

Nearest named CSS colourTomato (#FF6347)ΔE 15.24, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#37FBFD

Analogous#FD3798, #FD9C37

Triadic#37FD39, #3937FD

Split complementary#37FD9C, #3798FD

Tetradic#98FD37, #37FBFD, #9C37FD

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFCFCE

Lighter +20%#FE9D9C

Lighter +10%#FE6B69

Darker −10%#FC0705

Darker −20%#CC0402

Darker −30%#990302

Darker −40%#670201

More saturated +25%#FF3735

Less saturated −25%#E45250

Channel breakdown

R253

G57

B55

Red253 (99.2%)

Green57 (22.4%)

Blue55 (21.6%)

Hue0.61°

Saturation (HSL)98.02%

Lightness60.39%

Dominant channelRed

Hex per channelR FD · G 39 · B 37

Keep nerding

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

#FD3937

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

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