Recognised as Colour
#FB9558
- #FB9558
- Orange
- Dark
- Nearest: Sandy brown
#FB9558 is a orange with RGB values 251, 149, 88 and HSL 22°, 95%, 66%. It is a dark colour, so black text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Sandy brown.
Colour values
#FB9558#FB9558
HEX#FB9558
RGBrgb(251, 149, 88)
RGB (0–1)0.9843, 0.5843, 0.3451
RGB percentages98.4%, 58.4%, 34.5%
HSLhsl(22.5, 95.3%, 66.5%)
HSV / HSBhsv(22.5, 64.9%, 98.4%)
CMYK0%, 40.6%, 64.9%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,487,768
CSS custom property--colour: #FB9558;
Brightness & contrast
Relative luminance0.42709WCAG 2.x, 0 is black and 1 is white
Perceived brightness181 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.54:1
Contrast with white2.2:1WCAG normal text: Fail
Contrast with black9.54:1WCAG normal text: AAA
Greyscale equivalent#A6A6A6
Inverted#046AA7
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.2:1WCAG large text: Fail
Contrast with black, large text9.54:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#58BEFB
Analogous#FB586C, #FBE758
Triadic#58FB95, #9558FB
Split complementary#58FBE7, #586CFB
Tetradic#6CFB58, #58BEFB, #E758FB
Tints, shades & saturation
Channel breakdown
R251
G149
B88
Red251 (98.4%)
Green149 (58.4%)
Blue88 (34.5%)
Hue22.45°
Saturation (HSL)95.32%
Lightness66.47%
Dominant channelRed
Hex per channelR FB · G 95 · B 58
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Harmonies
Similar named colours
Also reads as
FB9558 (chemical formula)
- Formula
- 103,340.978 g/mol
- 9559 atoms
FB9558 has a molar mass of 103,340.978 g/mol, made up of 9559 atoms across 2 elements: 1 × F, 9558 × B.
Molar mass
Molar mass103,340.978 g/mol
Total atoms per molecule9559
Distinct elements2
Mass of one molecule1.7160173 × 10^-19 g
Molecules per gram5.827447 × 10^18
Name
NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show
Composition by mass
F0%
B100%
Fluorine (F)18.998 g/mol, 0.018%
Boron (B × 9558)103,321.98 g/mol, 99.982%
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