Recognised as Colour
#B30A19
- #B30A19
- Red
- Dark
- Nearest: Firebrick
#B30A19 is a red with RGB values 179, 10, 25 and HSL 355°, 89%, 37%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Firebrick.
Colour values
#B30A19#B30A19
HEX#B30A19
RGBrgb(179, 10, 25)
RGB (0–1)0.702, 0.0392, 0.098
RGB percentages70.2%, 3.9%, 9.8%
HSLhsl(354.7, 89.4%, 37.1%)
HSV / HSBhsv(354.7, 94.4%, 70.2%)
CMYK0%, 94.4%, 86%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,733,529
CSS custom property--colour: #B30A19;
Brightness & contrast
Relative luminance0.09871WCAG 2.x, 0 is black and 1 is white
Perceived brightness98.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.06:1
Contrast with white7.06:1WCAG normal text: AAA
Contrast with black2.97:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#4CF5E6
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.06:1WCAG large text: AAA
Contrast with black, large text2.97:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0AB3A4
Analogous#B30A6E, #B34F0A
Triadic#19B30A, #0A19B3
Split complementary#0AB350, #0A6EB3
Tetradic#6EB30A, #0AB3A4, #4F0AB3
Tints, shades & saturation
Channel breakdown
R179
G10
B25
Red179 (70.2%)
Green10 (3.9%)
Blue25 (9.8%)
Hue354.67°
Saturation (HSL)89.42%
Lightness37.06%
Dominant channelRed
Hex per channelR B3 · G 0A · B 19
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