Recognised as Colour
#D03310
- #D03310
- Red
- Dark
- Nearest: Tomato
#D03310 is a red with RGB values 208, 51, 16 and HSL 11°, 86%, 44%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Tomato.
Colour values
#D03310#D03310
HEX#D03310
RGBrgb(208, 51, 16)
RGB (0–1)0.8157, 0.2, 0.0627
RGB percentages81.6%, 20%, 6.3%
HSLhsl(10.9, 85.7%, 43.9%)
HSV / HSBhsv(10.9, 92.3%, 81.6%)
CMYK0%, 75.5%, 92.3%, 18.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,644,560
CSS custom property--colour: #D03310;
Brightness & contrast
Relative luminance0.15815WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.04:1
Contrast with white5.04:1WCAG normal text: AA
Contrast with black4.16:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#2FCCEF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.04:1WCAG large text: AAA
Contrast with black, large text4.16:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#10ADD0
Analogous#D0104D, #D09310
Triadic#10D033, #3310D0
Split complementary#10D093, #104DD0
Tetradic#4DD010, #10ADD0, #9310D0
Tints, shades & saturation
Channel breakdown
R208
G51
B16
Red208 (81.6%)
Green51 (20%)
Blue16 (6.3%)
Hue10.94°
Saturation (HSL)85.71%
Lightness43.92%
Dominant channelRed
Hex per channelR D0 · G 33 · B 10
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